Home / 2,293.60-3,439.68-1,320.16

Finding the Fourth Proportional to 2,293.60, 3,439.68 and 1,320.16

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Solution

The fourth proportional to 2,293.60, 3,439.68 and 1,320.16 is: 1,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.60 : 3,439.68 = 1,320.16 : x
  2. Step 2: Convert to fraction form
    2,293.60/3,439.68 = 1,320.16/x
  3. Step 3: Cross multiply
    2,293.60x = 3,439.68 × 1,320.16
  4. Step 4: Simplify right side
    2,293.60x = 4,540,927.95
  5. Step 5: Solve for x
    x = 4,540,927.95/2,293.60
  6. Step 6: Final answer
    x = 1,979.83

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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.