Home / 4,042.76-5,578.62-2,274.98

Finding the Fourth Proportional to 4,042.76, 5,578.62 and 2,274.98

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Solution

The fourth proportional to 4,042.76, 5,578.62 and 2,274.98 is: 3,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.76 : 5,578.62 = 2,274.98 : x
  2. Step 2: Convert to fraction form
    4,042.76/5,578.62 = 2,274.98/x
  3. Step 3: Cross multiply
    4,042.76x = 5,578.62 × 2,274.98
  4. Step 4: Simplify right side
    4,042.76x = 12,691,248.93
  5. Step 5: Solve for x
    x = 12,691,248.93/4,042.76
  6. Step 6: Final answer
    x = 3,139.25

Related Problems

Find fourth proportional to 2,021.38, 2,789.31 and 1,137.49
Half scale
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Double scale
Find fourth proportional to 4,043.76, 5,580 and 2,275.98
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.