Home / 3,670.11-5,500.31-2,728.89

Finding the Fourth Proportional to 3,670.11, 5,500.31 and 2,728.89

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Solution

The fourth proportional to 3,670.11, 5,500.31 and 2,728.89 is: 4,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.11 : 5,500.31 = 2,728.89 : x
  2. Step 2: Convert to fraction form
    3,670.11/5,500.31 = 2,728.89/x
  3. Step 3: Cross multiply
    3,670.11x = 5,500.31 × 2,728.89
  4. Step 4: Simplify right side
    3,670.11x = 15,009,727.31
  5. Step 5: Solve for x
    x = 15,009,727.31/3,670.11
  6. Step 6: Final answer
    x = 4,089.72

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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.