Home / 5,087.38-7,631.75-4,779.83

Finding the Fourth Proportional to 5,087.38, 7,631.75 and 4,779.83

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Solution

The fourth proportional to 5,087.38, 7,631.75 and 4,779.83 is: 7,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.38 : 7,631.75 = 4,779.83 : x
  2. Step 2: Convert to fraction form
    5,087.38/7,631.75 = 4,779.83/x
  3. Step 3: Cross multiply
    5,087.38x = 7,631.75 × 4,779.83
  4. Step 4: Simplify right side
    5,087.38x = 36,478,498.63
  5. Step 5: Solve for x
    x = 36,478,498.63/5,087.38
  6. Step 6: Final answer
    x = 7,170.39

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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.