Home / 3,042.76-4,198.68-1,783.76

Finding the Fourth Proportional to 3,042.76, 4,198.68 and 1,783.76

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Solution

The fourth proportional to 3,042.76, 4,198.68 and 1,783.76 is: 2,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.76 : 4,198.68 = 1,783.76 : x
  2. Step 2: Convert to fraction form
    3,042.76/4,198.68 = 1,783.76/x
  3. Step 3: Cross multiply
    3,042.76x = 4,198.68 × 1,783.76
  4. Step 4: Simplify right side
    3,042.76x = 7,489,437.44
  5. Step 5: Solve for x
    x = 7,489,437.44/3,042.76
  6. Step 6: Final answer
    x = 2,461.40

Related Problems

Find fourth proportional to 1,521.38, 2,099.34 and 891.88
Half scale
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Double scale
Find fourth proportional to 3,043.76, 4,200.06 and 1,784.76
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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.