Home / 4,877.46-7,299.18-3,989.70

Finding the Fourth Proportional to 4,877.46, 7,299.18 and 3,989.70

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Solution

The fourth proportional to 4,877.46, 7,299.18 and 3,989.70 is: 5,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.46 : 7,299.18 = 3,989.70 : x
  2. Step 2: Convert to fraction form
    4,877.46/7,299.18 = 3,989.70/x
  3. Step 3: Cross multiply
    4,877.46x = 7,299.18 × 3,989.70
  4. Step 4: Simplify right side
    4,877.46x = 29,121,538.45
  5. Step 5: Solve for x
    x = 29,121,538.45/4,877.46
  6. Step 6: Final answer
    x = 5,970.64

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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.