Home / 7,501.80-11,251.62-3,120.24

Finding the Fourth Proportional to 7,501.80, 11,251.62 and 3,120.24

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Solution

The fourth proportional to 7,501.80, 11,251.62 and 3,120.24 is: 4,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.80 : 11,251.62 = 3,120.24 : x
  2. Step 2: Convert to fraction form
    7,501.80/11,251.62 = 3,120.24/x
  3. Step 3: Cross multiply
    7,501.80x = 11,251.62 × 3,120.24
  4. Step 4: Simplify right side
    7,501.80x = 35,107,754.79
  5. Step 5: Solve for x
    x = 35,107,754.79/7,501.80
  6. Step 6: Final answer
    x = 4,679.91

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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.