Home / 3,742.47-5,614.32-1,403.28

Finding the Fourth Proportional to 3,742.47, 5,614.32 and 1,403.28

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Solution

The fourth proportional to 3,742.47, 5,614.32 and 1,403.28 is: 2,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.47 : 5,614.32 = 1,403.28 : x
  2. Step 2: Convert to fraction form
    3,742.47/5,614.32 = 1,403.28/x
  3. Step 3: Cross multiply
    3,742.47x = 5,614.32 × 1,403.28
  4. Step 4: Simplify right side
    3,742.47x = 7,878,462.97
  5. Step 5: Solve for x
    x = 7,878,462.97/3,742.47
  6. Step 6: Final answer
    x = 2,105.15

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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.