Home / 4,988.22-7,478.13-3,339.78

Finding the Fourth Proportional to 4,988.22, 7,478.13 and 3,339.78

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Solution

The fourth proportional to 4,988.22, 7,478.13 and 3,339.78 is: 5,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.22 : 7,478.13 = 3,339.78 : x
  2. Step 2: Convert to fraction form
    4,988.22/7,478.13 = 3,339.78/x
  3. Step 3: Cross multiply
    4,988.22x = 7,478.13 × 3,339.78
  4. Step 4: Simplify right side
    4,988.22x = 24,975,309.01
  5. Step 5: Solve for x
    x = 24,975,309.01/4,988.22
  6. Step 6: Final answer
    x = 5,006.86

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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.