Home / 5,158.16-7,737.78-2,385.08

Finding the Fourth Proportional to 5,158.16, 7,737.78 and 2,385.08

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Solution

The fourth proportional to 5,158.16, 7,737.78 and 2,385.08 is: 3,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.16 : 7,737.78 = 2,385.08 : x
  2. Step 2: Convert to fraction form
    5,158.16/7,737.78 = 2,385.08/x
  3. Step 3: Cross multiply
    5,158.16x = 7,737.78 × 2,385.08
  4. Step 4: Simplify right side
    5,158.16x = 18,455,224.32
  5. Step 5: Solve for x
    x = 18,455,224.32/5,158.16
  6. Step 6: Final answer
    x = 3,577.87

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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.