Home / 3,909.06-5,864.50-1,276.66

Finding the Fourth Proportional to 3,909.06, 5,864.50 and 1,276.66

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Solution

The fourth proportional to 3,909.06, 5,864.50 and 1,276.66 is: 1,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.06 : 5,864.50 = 1,276.66 : x
  2. Step 2: Convert to fraction form
    3,909.06/5,864.50 = 1,276.66/x
  3. Step 3: Cross multiply
    3,909.06x = 5,864.50 × 1,276.66
  4. Step 4: Simplify right side
    3,909.06x = 7,486,981.50
  5. Step 5: Solve for x
    x = 7,486,981.50/3,909.06
  6. Step 6: Final answer
    x = 1,915.29

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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.