Home / 3,122.77-4,661.28-2,753.72

Finding the Fourth Proportional to 3,122.77, 4,661.28 and 2,753.72

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Solution

The fourth proportional to 3,122.77, 4,661.28 and 2,753.72 is: 4,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.77 : 4,661.28 = 2,753.72 : x
  2. Step 2: Convert to fraction form
    3,122.77/4,661.28 = 2,753.72/x
  3. Step 3: Cross multiply
    3,122.77x = 4,661.28 × 2,753.72
  4. Step 4: Simplify right side
    3,122.77x = 12,835,859.96
  5. Step 5: Solve for x
    x = 12,835,859.96/3,122.77
  6. Step 6: Final answer
    x = 4,110.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.