Home / 3,101.76-4,655.40-2,772.16

Finding the Fourth Proportional to 3,101.76, 4,655.40 and 2,772.16

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Solution

The fourth proportional to 3,101.76, 4,655.40 and 2,772.16 is: 4,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.76 : 4,655.40 = 2,772.16 : x
  2. Step 2: Convert to fraction form
    3,101.76/4,655.40 = 2,772.16/x
  3. Step 3: Cross multiply
    3,101.76x = 4,655.40 × 2,772.16
  4. Step 4: Simplify right side
    3,101.76x = 12,905,513.66
  5. Step 5: Solve for x
    x = 12,905,513.66/3,101.76
  6. Step 6: Final answer
    x = 4,160.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.