Home / 2,439.48-3,660.84-1,286.04

Finding the Fourth Proportional to 2,439.48, 3,660.84 and 1,286.04

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Solution

The fourth proportional to 2,439.48, 3,660.84 and 1,286.04 is: 1,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.48 : 3,660.84 = 1,286.04 : x
  2. Step 2: Convert to fraction form
    2,439.48/3,660.84 = 1,286.04/x
  3. Step 3: Cross multiply
    2,439.48x = 3,660.84 × 1,286.04
  4. Step 4: Simplify right side
    2,439.48x = 4,707,986.67
  5. Step 5: Solve for x
    x = 4,707,986.67/2,439.48
  6. Step 6: Final answer
    x = 1,929.91

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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.