Home / 6,728.40-10,084.20-3,442.80

Finding the Fourth Proportional to 6,728.40, 10,084.20 and 3,442.80

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Solution

The fourth proportional to 6,728.40, 10,084.20 and 3,442.80 is: 5,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.40 : 10,084.20 = 3,442.80 : x
  2. Step 2: Convert to fraction form
    6,728.40/10,084.20 = 3,442.80/x
  3. Step 3: Cross multiply
    6,728.40x = 10,084.20 × 3,442.80
  4. Step 4: Simplify right side
    6,728.40x = 34,717,883.76
  5. Step 5: Solve for x
    x = 34,717,883.76/6,728.40
  6. Step 6: Final answer
    x = 5,159.90

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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.