Home / 3,463.60-5,195.40-2,081.20

Finding the Fourth Proportional to 3,463.60, 5,195.40 and 2,081.20

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Solution

The fourth proportional to 3,463.60, 5,195.40 and 2,081.20 is: 3,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.60 : 5,195.40 = 2,081.20 : x
  2. Step 2: Convert to fraction form
    3,463.60/5,195.40 = 2,081.20/x
  3. Step 3: Cross multiply
    3,463.60x = 5,195.40 × 2,081.20
  4. Step 4: Simplify right side
    3,463.60x = 10,812,666.48
  5. Step 5: Solve for x
    x = 10,812,666.48/3,463.60
  6. Step 6: Final answer
    x = 3,121.80

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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.