Home / 3,319.14-4,581.96-2,142.20

Finding the Fourth Proportional to 3,319.14, 4,581.96 and 2,142.20

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Solution

The fourth proportional to 3,319.14, 4,581.96 and 2,142.20 is: 2,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.14 : 4,581.96 = 2,142.20 : x
  2. Step 2: Convert to fraction form
    3,319.14/4,581.96 = 2,142.20/x
  3. Step 3: Cross multiply
    3,319.14x = 4,581.96 × 2,142.20
  4. Step 4: Simplify right side
    3,319.14x = 9,815,474.71
  5. Step 5: Solve for x
    x = 9,815,474.71/3,319.14
  6. Step 6: Final answer
    x = 2,957.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.