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Finding the Fourth Proportional to 3,671.80, 5,062.80 and 2,677.51

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Solution

The fourth proportional to 3,671.80, 5,062.80 and 2,677.51 is: 3,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.80 : 5,062.80 = 2,677.51 : x
  2. Step 2: Convert to fraction form
    3,671.80/5,062.80 = 2,677.51/x
  3. Step 3: Cross multiply
    3,671.80x = 5,062.80 × 2,677.51
  4. Step 4: Simplify right side
    3,671.80x = 13,555,697.63
  5. Step 5: Solve for x
    x = 13,555,697.63/3,671.80
  6. Step 6: Final answer
    x = 3,691.84

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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.