Home / 2,479.12-3,421.04-1,359.92

Finding the Fourth Proportional to 2,479.12, 3,421.04 and 1,359.92

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Solution

The fourth proportional to 2,479.12, 3,421.04 and 1,359.92 is: 1,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.12 : 3,421.04 = 1,359.92 : x
  2. Step 2: Convert to fraction form
    2,479.12/3,421.04 = 1,359.92/x
  3. Step 3: Cross multiply
    2,479.12x = 3,421.04 × 1,359.92
  4. Step 4: Simplify right side
    2,479.12x = 4,652,340.72
  5. Step 5: Solve for x
    x = 4,652,340.72/2,479.12
  6. Step 6: Final answer
    x = 1,876.61

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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.