Home / 3,909.34-5,862.54-1,276.23

Finding the Fourth Proportional to 3,909.34, 5,862.54 and 1,276.23

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Solution

The fourth proportional to 3,909.34, 5,862.54 and 1,276.23 is: 1,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.34 : 5,862.54 = 1,276.23 : x
  2. Step 2: Convert to fraction form
    3,909.34/5,862.54 = 1,276.23/x
  3. Step 3: Cross multiply
    3,909.34x = 5,862.54 × 1,276.23
  4. Step 4: Simplify right side
    3,909.34x = 7,481,949.42
  5. Step 5: Solve for x
    x = 7,481,949.42/3,909.34
  6. Step 6: Final answer
    x = 1,913.87

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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.