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Finding the Fourth Proportional to 3,731.88, 5,150.18 and 2,075.88

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Solution

The fourth proportional to 3,731.88, 5,150.18 and 2,075.88 is: 2,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.88 : 5,150.18 = 2,075.88 : x
  2. Step 2: Convert to fraction form
    3,731.88/5,150.18 = 2,075.88/x
  3. Step 3: Cross multiply
    3,731.88x = 5,150.18 × 2,075.88
  4. Step 4: Simplify right side
    3,731.88x = 10,691,155.66
  5. Step 5: Solve for x
    x = 10,691,155.66/3,731.88
  6. Step 6: Final answer
    x = 2,864.82

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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.