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Finding the Fourth Proportional to 2,125.16, 3,187.64 and 565.16

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Solution

The fourth proportional to 2,125.16, 3,187.64 and 565.16 is: 847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.16 : 3,187.64 = 565.16 : x
  2. Step 2: Convert to fraction form
    2,125.16/3,187.64 = 565.16/x
  3. Step 3: Cross multiply
    2,125.16x = 3,187.64 × 565.16
  4. Step 4: Simplify right side
    2,125.16x = 1,801,526.62
  5. Step 5: Solve for x
    x = 1,801,526.62/2,125.16
  6. Step 6: Final answer
    x = 847.71

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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.