Home / 2,185.08-3,277.70-724.20

Finding the Fourth Proportional to 2,185.08, 3,277.70 and 724.20

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Solution

The fourth proportional to 2,185.08, 3,277.70 and 724.20 is: 1,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.08 : 3,277.70 = 724.20 : x
  2. Step 2: Convert to fraction form
    2,185.08/3,277.70 = 724.20/x
  3. Step 3: Cross multiply
    2,185.08x = 3,277.70 × 724.20
  4. Step 4: Simplify right side
    2,185.08x = 2,373,710.34
  5. Step 5: Solve for x
    x = 2,373,710.34/2,185.08
  6. Step 6: Final answer
    x = 1,086.33

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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.