Home / 2,439.27-3,660.21-1,140.75

Finding the Fourth Proportional to 2,439.27, 3,660.21 and 1,140.75

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Solution

The fourth proportional to 2,439.27, 3,660.21 and 1,140.75 is: 1,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.27 : 3,660.21 = 1,140.75 : x
  2. Step 2: Convert to fraction form
    2,439.27/3,660.21 = 1,140.75/x
  3. Step 3: Cross multiply
    2,439.27x = 3,660.21 × 1,140.75
  4. Step 4: Simplify right side
    2,439.27x = 4,175,384.56
  5. Step 5: Solve for x
    x = 4,175,384.56/2,439.27
  6. Step 6: Final answer
    x = 1,711.74

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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.