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Finding the Fourth Proportional to 674.50, 925.69 and 656.26

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Solution

The fourth proportional to 674.50, 925.69 and 656.26 is: 900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.50 : 925.69 = 656.26 : x
  2. Step 2: Convert to fraction form
    674.50/925.69 = 656.26/x
  3. Step 3: Cross multiply
    674.50x = 925.69 × 656.26
  4. Step 4: Simplify right side
    674.50x = 607,493.32
  5. Step 5: Solve for x
    x = 607,493.32/674.50
  6. Step 6: Final answer
    x = 900.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.