Home / 3,447.50-4,757.80-1,955.55

Finding the Fourth Proportional to 3,447.50, 4,757.80 and 1,955.55

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Solution

The fourth proportional to 3,447.50, 4,757.80 and 1,955.55 is: 2,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.50 : 4,757.80 = 1,955.55 : x
  2. Step 2: Convert to fraction form
    3,447.50/4,757.80 = 1,955.55/x
  3. Step 3: Cross multiply
    3,447.50x = 4,757.80 × 1,955.55
  4. Step 4: Simplify right side
    3,447.50x = 9,304,082.22
  5. Step 5: Solve for x
    x = 9,304,082.22/3,447.50
  6. Step 6: Final answer
    x = 2,698.79

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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.