Home / 5,251.59-7,247.44-3,126.64

Finding the Fourth Proportional to 5,251.59, 7,247.44 and 3,126.64

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Solution

The fourth proportional to 5,251.59, 7,247.44 and 3,126.64 is: 4,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.59 : 7,247.44 = 3,126.64 : x
  2. Step 2: Convert to fraction form
    5,251.59/7,247.44 = 3,126.64/x
  3. Step 3: Cross multiply
    5,251.59x = 7,247.44 × 3,126.64
  4. Step 4: Simplify right side
    5,251.59x = 22,660,135.80
  5. Step 5: Solve for x
    x = 22,660,135.80/5,251.59
  6. Step 6: Final answer
    x = 4,314.91

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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.