Home / 2,143.26-2,959.74-1,359.18

Finding the Fourth Proportional to 2,143.26, 2,959.74 and 1,359.18

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Solution

The fourth proportional to 2,143.26, 2,959.74 and 1,359.18 is: 1,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.26 : 2,959.74 = 1,359.18 : x
  2. Step 2: Convert to fraction form
    2,143.26/2,959.74 = 1,359.18/x
  3. Step 3: Cross multiply
    2,143.26x = 2,959.74 × 1,359.18
  4. Step 4: Simplify right side
    2,143.26x = 4,022,819.41
  5. Step 5: Solve for x
    x = 4,022,819.41/2,143.26
  6. Step 6: Final answer
    x = 1,876.96

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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.