Home / 4,122.64-5,689.44-2,259.76

Finding the Fourth Proportional to 4,122.64, 5,689.44 and 2,259.76

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Solution

The fourth proportional to 4,122.64, 5,689.44 and 2,259.76 is: 3,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.64 : 5,689.44 = 2,259.76 : x
  2. Step 2: Convert to fraction form
    4,122.64/5,689.44 = 2,259.76/x
  3. Step 3: Cross multiply
    4,122.64x = 5,689.44 × 2,259.76
  4. Step 4: Simplify right side
    4,122.64x = 12,856,768.93
  5. Step 5: Solve for x
    x = 12,856,768.93/4,122.64
  6. Step 6: Final answer
    x = 3,118.58

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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.