Home / 3,787.88-5,675.40-2,686.76

Finding the Fourth Proportional to 3,787.88, 5,675.40 and 2,686.76

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Solution

The fourth proportional to 3,787.88, 5,675.40 and 2,686.76 is: 4,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.88 : 5,675.40 = 2,686.76 : x
  2. Step 2: Convert to fraction form
    3,787.88/5,675.40 = 2,686.76/x
  3. Step 3: Cross multiply
    3,787.88x = 5,675.40 × 2,686.76
  4. Step 4: Simplify right side
    3,787.88x = 15,248,437.70
  5. Step 5: Solve for x
    x = 15,248,437.70/3,787.88
  6. Step 6: Final answer
    x = 4,025.59

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1.5x scale

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.