Home / 1,909.19-2,863.75-610.66

Finding the Fourth Proportional to 1,909.19, 2,863.75 and 610.66

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Solution

The fourth proportional to 1,909.19, 2,863.75 and 610.66 is: 915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.19 : 2,863.75 = 610.66 : x
  2. Step 2: Convert to fraction form
    1,909.19/2,863.75 = 610.66/x
  3. Step 3: Cross multiply
    1,909.19x = 2,863.75 × 610.66
  4. Step 4: Simplify right side
    1,909.19x = 1,748,768.89
  5. Step 5: Solve for x
    x = 1,748,768.89/1,909.19
  6. Step 6: Final answer
    x = 915.97

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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.