Home / 2,079.30-2,869.38-1,195.05

Finding the Fourth Proportional to 2,079.30, 2,869.38 and 1,195.05

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Solution

The fourth proportional to 2,079.30, 2,869.38 and 1,195.05 is: 1,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.30 : 2,869.38 = 1,195.05 : x
  2. Step 2: Convert to fraction form
    2,079.30/2,869.38 = 1,195.05/x
  3. Step 3: Cross multiply
    2,079.30x = 2,869.38 × 1,195.05
  4. Step 4: Simplify right side
    2,079.30x = 3,429,052.57
  5. Step 5: Solve for x
    x = 3,429,052.57/2,079.30
  6. Step 6: Final answer
    x = 1,649.14

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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.