Home / 5,156.16-7,734.38-2,385.15

Finding the Fourth Proportional to 5,156.16, 7,734.38 and 2,385.15

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Solution

The fourth proportional to 5,156.16, 7,734.38 and 2,385.15 is: 3,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.16 : 7,734.38 = 2,385.15 : x
  2. Step 2: Convert to fraction form
    5,156.16/7,734.38 = 2,385.15/x
  3. Step 3: Cross multiply
    5,156.16x = 7,734.38 × 2,385.15
  4. Step 4: Simplify right side
    5,156.16x = 18,447,644.53
  5. Step 5: Solve for x
    x = 18,447,644.53/5,156.16
  6. Step 6: Final answer
    x = 3,577.79

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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.