Home / 3,909.75-5,395.46-2,253.75

Finding the Fourth Proportional to 3,909.75, 5,395.46 and 2,253.75

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Solution

The fourth proportional to 3,909.75, 5,395.46 and 2,253.75 is: 3,110.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.75 : 5,395.46 = 2,253.75 : x
  2. Step 2: Convert to fraction form
    3,909.75/5,395.46 = 2,253.75/x
  3. Step 3: Cross multiply
    3,909.75x = 5,395.46 × 2,253.75
  4. Step 4: Simplify right side
    3,909.75x = 12,160,006.71
  5. Step 5: Solve for x
    x = 12,160,006.71/3,909.75
  6. Step 6: Final answer
    x = 3,110.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.