Home / 2,577.79-3,861.70-1,538.62

Finding the Fourth Proportional to 2,577.79, 3,861.70 and 1,538.62

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Solution

The fourth proportional to 2,577.79, 3,861.70 and 1,538.62 is: 2,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.79 : 3,861.70 = 1,538.62 : x
  2. Step 2: Convert to fraction form
    2,577.79/3,861.70 = 1,538.62/x
  3. Step 3: Cross multiply
    2,577.79x = 3,861.70 × 1,538.62
  4. Step 4: Simplify right side
    2,577.79x = 5,941,661.85
  5. Step 5: Solve for x
    x = 5,941,661.85/2,577.79
  6. Step 6: Final answer
    x = 2,304.95

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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.