Home / 4,989.18-7,478.88-4,250.46

Finding the Fourth Proportional to 4,989.18, 7,478.88 and 4,250.46

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Solution

The fourth proportional to 4,989.18, 7,478.88 and 4,250.46 is: 6,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.18 : 7,478.88 = 4,250.46 : x
  2. Step 2: Convert to fraction form
    4,989.18/7,478.88 = 4,250.46/x
  3. Step 3: Cross multiply
    4,989.18x = 7,478.88 × 4,250.46
  4. Step 4: Simplify right side
    4,989.18x = 31,788,680.28
  5. Step 5: Solve for x
    x = 31,788,680.28/4,989.18
  6. Step 6: Final answer
    x = 6,371.52

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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.