Home / 3,862.26-5,330.40-2,681.28

Finding the Fourth Proportional to 3,862.26, 5,330.40 and 2,681.28

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Solution

The fourth proportional to 3,862.26, 5,330.40 and 2,681.28 is: 3,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.26 : 5,330.40 = 2,681.28 : x
  2. Step 2: Convert to fraction form
    3,862.26/5,330.40 = 2,681.28/x
  3. Step 3: Cross multiply
    3,862.26x = 5,330.40 × 2,681.28
  4. Step 4: Simplify right side
    3,862.26x = 14,292,294.91
  5. Step 5: Solve for x
    x = 14,292,294.91/3,862.26
  6. Step 6: Final answer
    x = 3,700.50

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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.