Home / 5,120.62-7,061.18-3,528.63

Finding the Fourth Proportional to 5,120.62, 7,061.18 and 3,528.63

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Solution

The fourth proportional to 5,120.62, 7,061.18 and 3,528.63 is: 4,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.62 : 7,061.18 = 3,528.63 : x
  2. Step 2: Convert to fraction form
    5,120.62/7,061.18 = 3,528.63/x
  3. Step 3: Cross multiply
    5,120.62x = 7,061.18 × 3,528.63
  4. Step 4: Simplify right side
    5,120.62x = 24,916,273.94
  5. Step 5: Solve for x
    x = 24,916,273.94/5,120.62
  6. Step 6: Final answer
    x = 4,865.87

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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.