Home / 4,122.76-5,689.20-2,259.76

Finding the Fourth Proportional to 4,122.76, 5,689.20 and 2,259.76

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Solution

The fourth proportional to 4,122.76, 5,689.20 and 2,259.76 is: 3,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.76 : 5,689.20 = 2,259.76 : x
  2. Step 2: Convert to fraction form
    4,122.76/5,689.20 = 2,259.76/x
  3. Step 3: Cross multiply
    4,122.76x = 5,689.20 × 2,259.76
  4. Step 4: Simplify right side
    4,122.76x = 12,856,226.59
  5. Step 5: Solve for x
    x = 12,856,226.59/4,122.76
  6. Step 6: Final answer
    x = 3,118.35

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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.