Home / 3,686.84-5,531.30-1,346.78

Finding the Fourth Proportional to 3,686.84, 5,531.30 and 1,346.78

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Solution

The fourth proportional to 3,686.84, 5,531.30 and 1,346.78 is: 2,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.84 : 5,531.30 = 1,346.78 : x
  2. Step 2: Convert to fraction form
    3,686.84/5,531.30 = 1,346.78/x
  3. Step 3: Cross multiply
    3,686.84x = 5,531.30 × 1,346.78
  4. Step 4: Simplify right side
    3,686.84x = 7,449,444.21
  5. Step 5: Solve for x
    x = 7,449,444.21/3,686.84
  6. Step 6: Final answer
    x = 2,020.55

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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.