Home / 2,079.28-2,868.68-1,333.65

Finding the Fourth Proportional to 2,079.28, 2,868.68 and 1,333.65

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Solution

The fourth proportional to 2,079.28, 2,868.68 and 1,333.65 is: 1,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.28 : 2,868.68 = 1,333.65 : x
  2. Step 2: Convert to fraction form
    2,079.28/2,868.68 = 1,333.65/x
  3. Step 3: Cross multiply
    2,079.28x = 2,868.68 × 1,333.65
  4. Step 4: Simplify right side
    2,079.28x = 3,825,815.08
  5. Step 5: Solve for x
    x = 3,825,815.08/2,079.28
  6. Step 6: Final answer
    x = 1,839.97

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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.