Home / 5,105.20-7,664.28-4,340.56

Finding the Fourth Proportional to 5,105.20, 7,664.28 and 4,340.56

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Solution

The fourth proportional to 5,105.20, 7,664.28 and 4,340.56 is: 6,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.20 : 7,664.28 = 4,340.56 : x
  2. Step 2: Convert to fraction form
    5,105.20/7,664.28 = 4,340.56/x
  3. Step 3: Cross multiply
    5,105.20x = 7,664.28 × 4,340.56
  4. Step 4: Simplify right side
    5,105.20x = 33,267,231.76
  5. Step 5: Solve for x
    x = 33,267,231.76/5,105.20
  6. Step 6: Final answer
    x = 6,516.35

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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.