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Finding the Fourth Proportional to 7,252.40, 10,879.40 and 2,321.20

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Solution

The fourth proportional to 7,252.40, 10,879.40 and 2,321.20 is: 3,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,252.40 : 10,879.40 = 2,321.20 : x
  2. Step 2: Convert to fraction form
    7,252.40/10,879.40 = 2,321.20/x
  3. Step 3: Cross multiply
    7,252.40x = 10,879.40 × 2,321.20
  4. Step 4: Simplify right side
    7,252.40x = 25,253,263.28
  5. Step 5: Solve for x
    x = 25,253,263.28/7,252.40
  6. Step 6: Final answer
    x = 3,482.06

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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.