Home / 5,087.53-7,631.30-2,488.64

Finding the Fourth Proportional to 5,087.53, 7,631.30 and 2,488.64

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Solution

The fourth proportional to 5,087.53, 7,631.30 and 2,488.64 is: 3,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.53 : 7,631.30 = 2,488.64 : x
  2. Step 2: Convert to fraction form
    5,087.53/7,631.30 = 2,488.64/x
  3. Step 3: Cross multiply
    5,087.53x = 7,631.30 × 2,488.64
  4. Step 4: Simplify right side
    5,087.53x = 18,991,555.42
  5. Step 5: Solve for x
    x = 18,991,555.42/5,087.53
  6. Step 6: Final answer
    x = 3,732.97

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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.