Home / 2,079.26-2,868.17-1,239.70

Finding the Fourth Proportional to 2,079.26, 2,868.17 and 1,239.70

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Solution

The fourth proportional to 2,079.26, 2,868.17 and 1,239.70 is: 1,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.26 : 2,868.17 = 1,239.70 : x
  2. Step 2: Convert to fraction form
    2,079.26/2,868.17 = 1,239.70/x
  3. Step 3: Cross multiply
    2,079.26x = 2,868.17 × 1,239.70
  4. Step 4: Simplify right side
    2,079.26x = 3,555,656.01
  5. Step 5: Solve for x
    x = 3,555,656.01/2,079.26
  6. Step 6: Final answer
    x = 1,710.06

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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.