Home / 2,589.52-3,885-1,436.08

Finding the Fourth Proportional to 2,589.52, 3,885 and 1,436.08

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Solution

The fourth proportional to 2,589.52, 3,885 and 1,436.08 is: 2,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.52 : 3,885 = 1,436.08 : x
  2. Step 2: Convert to fraction form
    2,589.52/3,885 = 1,436.08/x
  3. Step 3: Cross multiply
    2,589.52x = 3,885 × 1,436.08
  4. Step 4: Simplify right side
    2,589.52x = 5,579,170.80
  5. Step 5: Solve for x
    x = 5,579,170.80/2,589.52
  6. Step 6: Final answer
    x = 2,154.52

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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.