Home / 2,275.98-3,142.40-1,743.92

Finding the Fourth Proportional to 2,275.98, 3,142.40 and 1,743.92

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Solution

The fourth proportional to 2,275.98, 3,142.40 and 1,743.92 is: 2,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.98 : 3,142.40 = 1,743.92 : x
  2. Step 2: Convert to fraction form
    2,275.98/3,142.40 = 1,743.92/x
  3. Step 3: Cross multiply
    2,275.98x = 3,142.40 × 1,743.92
  4. Step 4: Simplify right side
    2,275.98x = 5,480,094.21
  5. Step 5: Solve for x
    x = 5,480,094.21/2,275.98
  6. Step 6: Final answer
    x = 2,407.80

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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.