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Finding the Fourth Proportional to 5,267.70, 7,247.07 and 5,121.90

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Solution

The fourth proportional to 5,267.70, 7,247.07 and 5,121.90 is: 7,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.70 : 7,247.07 = 5,121.90 : x
  2. Step 2: Convert to fraction form
    5,267.70/7,247.07 = 5,121.90/x
  3. Step 3: Cross multiply
    5,267.70x = 7,247.07 × 5,121.90
  4. Step 4: Simplify right side
    5,267.70x = 37,118,767.83
  5. Step 5: Solve for x
    x = 37,118,767.83/5,267.70
  6. Step 6: Final answer
    x = 7,046.48

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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.