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Finding the Fourth Proportional to 937.90, 1,294.95 and 607.18

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Solution

The fourth proportional to 937.90, 1,294.95 and 607.18 is: 838.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.90 : 1,294.95 = 607.18 : x
  2. Step 2: Convert to fraction form
    937.90/1,294.95 = 607.18/x
  3. Step 3: Cross multiply
    937.90x = 1,294.95 × 607.18
  4. Step 4: Simplify right side
    937.90x = 786,267.74
  5. Step 5: Solve for x
    x = 786,267.74/937.90
  6. Step 6: Final answer
    x = 838.33

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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.