Home / 7,129.20-10,695.01-2,197.92

Finding the Fourth Proportional to 7,129.20, 10,695.01 and 2,197.92

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Solution

The fourth proportional to 7,129.20, 10,695.01 and 2,197.92 is: 3,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.20 : 10,695.01 = 2,197.92 : x
  2. Step 2: Convert to fraction form
    7,129.20/10,695.01 = 2,197.92/x
  3. Step 3: Cross multiply
    7,129.20x = 10,695.01 × 2,197.92
  4. Step 4: Simplify right side
    7,129.20x = 23,506,761.13
  5. Step 5: Solve for x
    x = 23,506,761.13/7,129.20
  6. Step 6: Final answer
    x = 3,297.25

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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.