Home / 5,020.82-7,531.38-4,285.76

Finding the Fourth Proportional to 5,020.82, 7,531.38 and 4,285.76

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Solution

The fourth proportional to 5,020.82, 7,531.38 and 4,285.76 is: 6,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.82 : 7,531.38 = 4,285.76 : x
  2. Step 2: Convert to fraction form
    5,020.82/7,531.38 = 4,285.76/x
  3. Step 3: Cross multiply
    5,020.82x = 7,531.38 × 4,285.76
  4. Step 4: Simplify right side
    5,020.82x = 32,277,687.15
  5. Step 5: Solve for x
    x = 32,277,687.15/5,020.82
  6. Step 6: Final answer
    x = 6,428.77

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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.