Home / 2,143.14-2,959.38-1,650.66

Finding the Fourth Proportional to 2,143.14, 2,959.38 and 1,650.66

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Solution

The fourth proportional to 2,143.14, 2,959.38 and 1,650.66 is: 2,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.14 : 2,959.38 = 1,650.66 : x
  2. Step 2: Convert to fraction form
    2,143.14/2,959.38 = 1,650.66/x
  3. Step 3: Cross multiply
    2,143.14x = 2,959.38 × 1,650.66
  4. Step 4: Simplify right side
    2,143.14x = 4,884,930.19
  5. Step 5: Solve for x
    x = 4,884,930.19/2,143.14
  6. Step 6: Final answer
    x = 2,279.33

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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.