Home / 3,489.02-5,226.46-1,728.72

Finding the Fourth Proportional to 3,489.02, 5,226.46 and 1,728.72

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Solution

The fourth proportional to 3,489.02, 5,226.46 and 1,728.72 is: 2,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.02 : 5,226.46 = 1,728.72 : x
  2. Step 2: Convert to fraction form
    3,489.02/5,226.46 = 1,728.72/x
  3. Step 3: Cross multiply
    3,489.02x = 5,226.46 × 1,728.72
  4. Step 4: Simplify right side
    3,489.02x = 9,035,081.61
  5. Step 5: Solve for x
    x = 9,035,081.61/3,489.02
  6. Step 6: Final answer
    x = 2,589.58

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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.