Home / 2,224.83-3,070.11-1,279.95

Finding the Fourth Proportional to 2,224.83, 3,070.11 and 1,279.95

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Solution

The fourth proportional to 2,224.83, 3,070.11 and 1,279.95 is: 1,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.83 : 3,070.11 = 1,279.95 : x
  2. Step 2: Convert to fraction form
    2,224.83/3,070.11 = 1,279.95/x
  3. Step 3: Cross multiply
    2,224.83x = 3,070.11 × 1,279.95
  4. Step 4: Simplify right side
    2,224.83x = 3,929,587.29
  5. Step 5: Solve for x
    x = 3,929,587.29/2,224.83
  6. Step 6: Final answer
    x = 1,766.24

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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.