Home / 5,915.16-8,163.18-3,557.28

Finding the Fourth Proportional to 5,915.16, 8,163.18 and 3,557.28

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Solution

The fourth proportional to 5,915.16, 8,163.18 and 3,557.28 is: 4,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.16 : 8,163.18 = 3,557.28 : x
  2. Step 2: Convert to fraction form
    5,915.16/8,163.18 = 3,557.28/x
  3. Step 3: Cross multiply
    5,915.16x = 8,163.18 × 3,557.28
  4. Step 4: Simplify right side
    5,915.16x = 29,038,716.95
  5. Step 5: Solve for x
    x = 29,038,716.95/5,915.16
  6. Step 6: Final answer
    x = 4,909.20

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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.