Home / 5,087.50-7,631.93-4,779.95

Finding the Fourth Proportional to 5,087.50, 7,631.93 and 4,779.95

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Solution

The fourth proportional to 5,087.50, 7,631.93 and 4,779.95 is: 7,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.50 : 7,631.93 = 4,779.95 : x
  2. Step 2: Convert to fraction form
    5,087.50/7,631.93 = 4,779.95/x
  3. Step 3: Cross multiply
    5,087.50x = 7,631.93 × 4,779.95
  4. Step 4: Simplify right side
    5,087.50x = 36,480,243.80
  5. Step 5: Solve for x
    x = 36,480,243.80/5,087.50
  6. Step 6: Final answer
    x = 7,170.56

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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.