Home / 2,724.20-3,760.12-2,281.40

Finding the Fourth Proportional to 2,724.20, 3,760.12 and 2,281.40

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Solution

The fourth proportional to 2,724.20, 3,760.12 and 2,281.40 is: 3,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.20 : 3,760.12 = 2,281.40 : x
  2. Step 2: Convert to fraction form
    2,724.20/3,760.12 = 2,281.40/x
  3. Step 3: Cross multiply
    2,724.20x = 3,760.12 × 2,281.40
  4. Step 4: Simplify right side
    2,724.20x = 8,578,337.77
  5. Step 5: Solve for x
    x = 8,578,337.77/2,724.20
  6. Step 6: Final answer
    x = 3,148.94

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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.