Home / 5,105.28-7,052.24-4,000.20

Finding the Fourth Proportional to 5,105.28, 7,052.24 and 4,000.20

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Solution

The fourth proportional to 5,105.28, 7,052.24 and 4,000.20 is: 5,525.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.28 : 7,052.24 = 4,000.20 : x
  2. Step 2: Convert to fraction form
    5,105.28/7,052.24 = 4,000.20/x
  3. Step 3: Cross multiply
    5,105.28x = 7,052.24 × 4,000.20
  4. Step 4: Simplify right side
    5,105.28x = 28,210,370.45
  5. Step 5: Solve for x
    x = 28,210,370.45/5,105.28
  6. Step 6: Final answer
    x = 5,525.72

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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.