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Finding the Fourth Proportional to 4,871.22, 7,306.83 and 3,899.22

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Solution

The fourth proportional to 4,871.22, 7,306.83 and 3,899.22 is: 5,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.22 : 7,306.83 = 3,899.22 : x
  2. Step 2: Convert to fraction form
    4,871.22/7,306.83 = 3,899.22/x
  3. Step 3: Cross multiply
    4,871.22x = 7,306.83 × 3,899.22
  4. Step 4: Simplify right side
    4,871.22x = 28,490,937.67
  5. Step 5: Solve for x
    x = 28,490,937.67/4,871.22
  6. Step 6: Final answer
    x = 5,848.83

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Similar ratio
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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.