Home / 4,908.40-7,351.80-3,439.60

Finding the Fourth Proportional to 4,908.40, 7,351.80 and 3,439.60

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Solution

The fourth proportional to 4,908.40, 7,351.80 and 3,439.60 is: 5,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.40 : 7,351.80 = 3,439.60 : x
  2. Step 2: Convert to fraction form
    4,908.40/7,351.80 = 3,439.60/x
  3. Step 3: Cross multiply
    4,908.40x = 7,351.80 × 3,439.60
  4. Step 4: Simplify right side
    4,908.40x = 25,287,251.28
  5. Step 5: Solve for x
    x = 25,287,251.28/4,908.40
  6. Step 6: Final answer
    x = 5,151.83

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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.