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Finding the Fourth Proportional to 1,975.22, 2,962.50 and 658.85

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Solution

The fourth proportional to 1,975.22, 2,962.50 and 658.85 is: 988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.22 : 2,962.50 = 658.85 : x
  2. Step 2: Convert to fraction form
    1,975.22/2,962.50 = 658.85/x
  3. Step 3: Cross multiply
    1,975.22x = 2,962.50 × 658.85
  4. Step 4: Simplify right side
    1,975.22x = 1,951,839.83
  5. Step 5: Solve for x
    x = 1,951,839.83/1,975.22
  6. Step 6: Final answer
    x = 988.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.