Home / 5,107.64-7,049.20-2,869.52

Finding the Fourth Proportional to 5,107.64, 7,049.20 and 2,869.52

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Solution

The fourth proportional to 5,107.64, 7,049.20 and 2,869.52 is: 3,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.64 : 7,049.20 = 2,869.52 : x
  2. Step 2: Convert to fraction form
    5,107.64/7,049.20 = 2,869.52/x
  3. Step 3: Cross multiply
    5,107.64x = 7,049.20 × 2,869.52
  4. Step 4: Simplify right side
    5,107.64x = 20,227,770.79
  5. Step 5: Solve for x
    x = 20,227,770.79/5,107.64
  6. Step 6: Final answer
    x = 3,960.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.