Home / 7,146.40-10,726.80-3,451.60

Finding the Fourth Proportional to 7,146.40, 10,726.80 and 3,451.60

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Solution

The fourth proportional to 7,146.40, 10,726.80 and 3,451.60 is: 5,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.40 : 10,726.80 = 3,451.60 : x
  2. Step 2: Convert to fraction form
    7,146.40/10,726.80 = 3,451.60/x
  3. Step 3: Cross multiply
    7,146.40x = 10,726.80 × 3,451.60
  4. Step 4: Simplify right side
    7,146.40x = 37,024,622.88
  5. Step 5: Solve for x
    x = 37,024,622.88/7,146.40
  6. Step 6: Final answer
    x = 5,180.88

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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.