Home / 2,079.20-3,116.19-1,039.49

Finding the Fourth Proportional to 2,079.20, 3,116.19 and 1,039.49

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Solution

The fourth proportional to 2,079.20, 3,116.19 and 1,039.49 is: 1,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.20 : 3,116.19 = 1,039.49 : x
  2. Step 2: Convert to fraction form
    2,079.20/3,116.19 = 1,039.49/x
  3. Step 3: Cross multiply
    2,079.20x = 3,116.19 × 1,039.49
  4. Step 4: Simplify right side
    2,079.20x = 3,239,232.76
  5. Step 5: Solve for x
    x = 3,239,232.76/2,079.20
  6. Step 6: Final answer
    x = 1,557.93

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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.