Home / 5,107.92-7,660.28-3,385.68

Finding the Fourth Proportional to 5,107.92, 7,660.28 and 3,385.68

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Solution

The fourth proportional to 5,107.92, 7,660.28 and 3,385.68 is: 5,077.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.92 : 7,660.28 = 3,385.68 : x
  2. Step 2: Convert to fraction form
    5,107.92/7,660.28 = 3,385.68/x
  3. Step 3: Cross multiply
    5,107.92x = 7,660.28 × 3,385.68
  4. Step 4: Simplify right side
    5,107.92x = 25,935,256.79
  5. Step 5: Solve for x
    x = 25,935,256.79/5,107.92
  6. Step 6: Final answer
    x = 5,077.46

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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.