Home / 7,501.12-11,251.68-2,880.88

Finding the Fourth Proportional to 7,501.12, 11,251.68 and 2,880.88

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Solution

The fourth proportional to 7,501.12, 11,251.68 and 2,880.88 is: 4,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.12 : 11,251.68 = 2,880.88 : x
  2. Step 2: Convert to fraction form
    7,501.12/11,251.68 = 2,880.88/x
  3. Step 3: Cross multiply
    7,501.12x = 11,251.68 × 2,880.88
  4. Step 4: Simplify right side
    7,501.12x = 32,414,739.88
  5. Step 5: Solve for x
    x = 32,414,739.88/7,501.12
  6. Step 6: Final answer
    x = 4,321.32

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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.