Home / 3,931.13-5,418.29-2,602.53

Finding the Fourth Proportional to 3,931.13, 5,418.29 and 2,602.53

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Solution

The fourth proportional to 3,931.13, 5,418.29 and 2,602.53 is: 3,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.13 : 5,418.29 = 2,602.53 : x
  2. Step 2: Convert to fraction form
    3,931.13/5,418.29 = 2,602.53/x
  3. Step 3: Cross multiply
    3,931.13x = 5,418.29 × 2,602.53
  4. Step 4: Simplify right side
    3,931.13x = 14,101,268.78
  5. Step 5: Solve for x
    x = 14,101,268.78/3,931.13
  6. Step 6: Final answer
    x = 3,587.08

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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.