Home / 1,909.18-2,863.67-610.55

Finding the Fourth Proportional to 1,909.18, 2,863.67 and 610.55

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Solution

The fourth proportional to 1,909.18, 2,863.67 and 610.55 is: 915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.18 : 2,863.67 = 610.55 : x
  2. Step 2: Convert to fraction form
    1,909.18/2,863.67 = 610.55/x
  3. Step 3: Cross multiply
    1,909.18x = 2,863.67 × 610.55
  4. Step 4: Simplify right side
    1,909.18x = 1,748,407.09
  5. Step 5: Solve for x
    x = 1,748,407.09/1,909.18
  6. Step 6: Final answer
    x = 915.79

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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.