Home / 3,915.04-5,402.16-2,589.28

Finding the Fourth Proportional to 3,915.04, 5,402.16 and 2,589.28

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Solution

The fourth proportional to 3,915.04, 5,402.16 and 2,589.28 is: 3,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.04 : 5,402.16 = 2,589.28 : x
  2. Step 2: Convert to fraction form
    3,915.04/5,402.16 = 2,589.28/x
  3. Step 3: Cross multiply
    3,915.04x = 5,402.16 × 2,589.28
  4. Step 4: Simplify right side
    3,915.04x = 13,987,704.84
  5. Step 5: Solve for x
    x = 13,987,704.84/3,915.04
  6. Step 6: Final answer
    x = 3,572.81

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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.