Home / 1,479.80-2,217.08-1,318.92

Finding the Fourth Proportional to 1,479.80, 2,217.08 and 1,318.92

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Solution

The fourth proportional to 1,479.80, 2,217.08 and 1,318.92 is: 1,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.80 : 2,217.08 = 1,318.92 : x
  2. Step 2: Convert to fraction form
    1,479.80/2,217.08 = 1,318.92/x
  3. Step 3: Cross multiply
    1,479.80x = 2,217.08 × 1,318.92
  4. Step 4: Simplify right side
    1,479.80x = 2,924,151.15
  5. Step 5: Solve for x
    x = 2,924,151.15/1,479.80
  6. Step 6: Final answer
    x = 1,976.04

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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.