Home / 5,087.15-7,632.60-2,125.91

Finding the Fourth Proportional to 5,087.15, 7,632.60 and 2,125.91

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Solution

The fourth proportional to 5,087.15, 7,632.60 and 2,125.91 is: 3,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.15 : 7,632.60 = 2,125.91 : x
  2. Step 2: Convert to fraction form
    5,087.15/7,632.60 = 2,125.91/x
  3. Step 3: Cross multiply
    5,087.15x = 7,632.60 × 2,125.91
  4. Step 4: Simplify right side
    5,087.15x = 16,226,220.67
  5. Step 5: Solve for x
    x = 16,226,220.67/5,087.15
  6. Step 6: Final answer
    x = 3,189.65

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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.