Home / 3,142.76-4,335.09-2,259.76

Finding the Fourth Proportional to 3,142.76, 4,335.09 and 2,259.76

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Solution

The fourth proportional to 3,142.76, 4,335.09 and 2,259.76 is: 3,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.76 : 4,335.09 = 2,259.76 : x
  2. Step 2: Convert to fraction form
    3,142.76/4,335.09 = 2,259.76/x
  3. Step 3: Cross multiply
    3,142.76x = 4,335.09 × 2,259.76
  4. Step 4: Simplify right side
    3,142.76x = 9,796,262.98
  5. Step 5: Solve for x
    x = 9,796,262.98/3,142.76
  6. Step 6: Final answer
    x = 3,117.09

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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.