Home / 2,589.42-3,883.32-1,615.80

Finding the Fourth Proportional to 2,589.42, 3,883.32 and 1,615.80

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Solution

The fourth proportional to 2,589.42, 3,883.32 and 1,615.80 is: 2,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.42 : 3,883.32 = 1,615.80 : x
  2. Step 2: Convert to fraction form
    2,589.42/3,883.32 = 1,615.80/x
  3. Step 3: Cross multiply
    2,589.42x = 3,883.32 × 1,615.80
  4. Step 4: Simplify right side
    2,589.42x = 6,274,668.46
  5. Step 5: Solve for x
    x = 6,274,668.46/2,589.42
  6. Step 6: Final answer
    x = 2,423.19

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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.