Home / 3,454.92-4,765.86-2,127.69

Finding the Fourth Proportional to 3,454.92, 4,765.86 and 2,127.69

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Solution

The fourth proportional to 3,454.92, 4,765.86 and 2,127.69 is: 2,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.92 : 4,765.86 = 2,127.69 : x
  2. Step 2: Convert to fraction form
    3,454.92/4,765.86 = 2,127.69/x
  3. Step 3: Cross multiply
    3,454.92x = 4,765.86 × 2,127.69
  4. Step 4: Simplify right side
    3,454.92x = 10,140,272.66
  5. Step 5: Solve for x
    x = 10,140,272.66/3,454.92
  6. Step 6: Final answer
    x = 2,935.02

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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.