Home / 2,185.74-3,277.80-724.50

Finding the Fourth Proportional to 2,185.74, 3,277.80 and 724.50

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Solution

The fourth proportional to 2,185.74, 3,277.80 and 724.50 is: 1,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.74 : 3,277.80 = 724.50 : x
  2. Step 2: Convert to fraction form
    2,185.74/3,277.80 = 724.50/x
  3. Step 3: Cross multiply
    2,185.74x = 3,277.80 × 724.50
  4. Step 4: Simplify right side
    2,185.74x = 2,374,766.10
  5. Step 5: Solve for x
    x = 2,374,766.10/2,185.74
  6. Step 6: Final answer
    x = 1,086.48

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1.5x scale

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.