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Finding the Fourth Proportional to 658.38, 910.19 and 652.15

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Solution

The fourth proportional to 658.38, 910.19 and 652.15 is: 901.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.38 : 910.19 = 652.15 : x
  2. Step 2: Convert to fraction form
    658.38/910.19 = 652.15/x
  3. Step 3: Cross multiply
    658.38x = 910.19 × 652.15
  4. Step 4: Simplify right side
    658.38x = 593,579.51
  5. Step 5: Solve for x
    x = 593,579.51/658.38
  6. Step 6: Final answer
    x = 901.58

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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.