Home / 2,943.68-4,062.12-1,684.76

Finding the Fourth Proportional to 2,943.68, 4,062.12 and 1,684.76

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Solution

The fourth proportional to 2,943.68, 4,062.12 and 1,684.76 is: 2,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.68 : 4,062.12 = 1,684.76 : x
  2. Step 2: Convert to fraction form
    2,943.68/4,062.12 = 1,684.76/x
  3. Step 3: Cross multiply
    2,943.68x = 4,062.12 × 1,684.76
  4. Step 4: Simplify right side
    2,943.68x = 6,843,697.29
  5. Step 5: Solve for x
    x = 6,843,697.29/2,943.68
  6. Step 6: Final answer
    x = 2,324.88

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Half scale
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Double scale
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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.