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Finding the Fourth Proportional to 4,799.28, 7,197.51 and 1,678.70

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Solution

The fourth proportional to 4,799.28, 7,197.51 and 1,678.70 is: 2,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.28 : 7,197.51 = 1,678.70 : x
  2. Step 2: Convert to fraction form
    4,799.28/7,197.51 = 1,678.70/x
  3. Step 3: Cross multiply
    4,799.28x = 7,197.51 × 1,678.70
  4. Step 4: Simplify right side
    4,799.28x = 12,082,477.41
  5. Step 5: Solve for x
    x = 12,082,477.41/4,799.28
  6. Step 6: Final answer
    x = 2,517.56

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1.5x scale

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.