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Finding the Fourth Proportional to 1,658.76, 2,288.22 and 1,265.10

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Solution

The fourth proportional to 1,658.76, 2,288.22 and 1,265.10 is: 1,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.76 : 2,288.22 = 1,265.10 : x
  2. Step 2: Convert to fraction form
    1,658.76/2,288.22 = 1,265.10/x
  3. Step 3: Cross multiply
    1,658.76x = 2,288.22 × 1,265.10
  4. Step 4: Simplify right side
    1,658.76x = 2,894,827.12
  5. Step 5: Solve for x
    x = 2,894,827.12/1,658.76
  6. Step 6: Final answer
    x = 1,745.18

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Half scale
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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.