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Finding the Fourth Proportional to 1,588.32, 2,191.68 and 925.11

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Solution

The fourth proportional to 1,588.32, 2,191.68 and 925.11 is: 1,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.32 : 2,191.68 = 925.11 : x
  2. Step 2: Convert to fraction form
    1,588.32/2,191.68 = 925.11/x
  3. Step 3: Cross multiply
    1,588.32x = 2,191.68 × 925.11
  4. Step 4: Simplify right side
    1,588.32x = 2,027,545.08
  5. Step 5: Solve for x
    x = 2,027,545.08/1,588.32
  6. Step 6: Final answer
    x = 1,276.53

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1.5x scale

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.