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Finding the Fourth Proportional to 1,124.16, 1,551.24 and 658.32

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Solution

The fourth proportional to 1,124.16, 1,551.24 and 658.32 is: 908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.16 : 1,551.24 = 658.32 : x
  2. Step 2: Convert to fraction form
    1,124.16/1,551.24 = 658.32/x
  3. Step 3: Cross multiply
    1,124.16x = 1,551.24 × 658.32
  4. Step 4: Simplify right side
    1,124.16x = 1,021,212.32
  5. Step 5: Solve for x
    x = 1,021,212.32/1,124.16
  6. Step 6: Final answer
    x = 908.42

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Double scale
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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.