Home / 5,587.36-8,380.98-2,124.61

Finding the Fourth Proportional to 5,587.36, 8,380.98 and 2,124.61

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Solution

The fourth proportional to 5,587.36, 8,380.98 and 2,124.61 is: 3,186.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.36 : 8,380.98 = 2,124.61 : x
  2. Step 2: Convert to fraction form
    5,587.36/8,380.98 = 2,124.61/x
  3. Step 3: Cross multiply
    5,587.36x = 8,380.98 × 2,124.61
  4. Step 4: Simplify right side
    5,587.36x = 17,806,313.92
  5. Step 5: Solve for x
    x = 17,806,313.92/5,587.36
  6. Step 6: Final answer
    x = 3,186.89

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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.