Home / 3,011.28-4,154.34-2,126.76

Finding the Fourth Proportional to 3,011.28, 4,154.34 and 2,126.76

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Solution

The fourth proportional to 3,011.28, 4,154.34 and 2,126.76 is: 2,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.28 : 4,154.34 = 2,126.76 : x
  2. Step 2: Convert to fraction form
    3,011.28/4,154.34 = 2,126.76/x
  3. Step 3: Cross multiply
    3,011.28x = 4,154.34 × 2,126.76
  4. Step 4: Simplify right side
    3,011.28x = 8,835,284.14
  5. Step 5: Solve for x
    x = 8,835,284.14/3,011.28
  6. Step 6: Final answer
    x = 2,934.06

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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.