Home / 5,100.11-7,633.74-2,631.53

Finding the Fourth Proportional to 5,100.11, 7,633.74 and 2,631.53

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Solution

The fourth proportional to 5,100.11, 7,633.74 and 2,631.53 is: 3,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.11 : 7,633.74 = 2,631.53 : x
  2. Step 2: Convert to fraction form
    5,100.11/7,633.74 = 2,631.53/x
  3. Step 3: Cross multiply
    5,100.11x = 7,633.74 × 2,631.53
  4. Step 4: Simplify right side
    5,100.11x = 20,088,377.65
  5. Step 5: Solve for x
    x = 20,088,377.65/5,100.11
  6. Step 6: Final answer
    x = 3,938.82

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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.