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Finding the Fourth Proportional to 1,624.08, 2,240.26 and 994.71

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Solution

The fourth proportional to 1,624.08, 2,240.26 and 994.71 is: 1,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.08 : 2,240.26 = 994.71 : x
  2. Step 2: Convert to fraction form
    1,624.08/2,240.26 = 994.71/x
  3. Step 3: Cross multiply
    1,624.08x = 2,240.26 × 994.71
  4. Step 4: Simplify right side
    1,624.08x = 2,228,414.94
  5. Step 5: Solve for x
    x = 2,228,414.94/1,624.08
  6. Step 6: Final answer
    x = 1,372.11

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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.