Home / 3,417.28-5,127.45-1,543.29

Finding the Fourth Proportional to 3,417.28, 5,127.45 and 1,543.29

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Solution

The fourth proportional to 3,417.28, 5,127.45 and 1,543.29 is: 2,315.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.28 : 5,127.45 = 1,543.29 : x
  2. Step 2: Convert to fraction form
    3,417.28/5,127.45 = 1,543.29/x
  3. Step 3: Cross multiply
    3,417.28x = 5,127.45 × 1,543.29
  4. Step 4: Simplify right side
    3,417.28x = 7,913,142.31
  5. Step 5: Solve for x
    x = 7,913,142.31/3,417.28
  6. Step 6: Final answer
    x = 2,315.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.