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Finding the Fourth Proportional to 907.10, 1,250.34 and 658.08

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Solution

The fourth proportional to 907.10, 1,250.34 and 658.08 is: 907.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.10 : 1,250.34 = 658.08 : x
  2. Step 2: Convert to fraction form
    907.10/1,250.34 = 658.08/x
  3. Step 3: Cross multiply
    907.10x = 1,250.34 × 658.08
  4. Step 4: Simplify right side
    907.10x = 822,823.75
  5. Step 5: Solve for x
    x = 822,823.75/907.10
  6. Step 6: Final answer
    x = 907.09

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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.