Home / 3,187.24-4,782.27-1,724.68

Finding the Fourth Proportional to 3,187.24, 4,782.27 and 1,724.68

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Solution

The fourth proportional to 3,187.24, 4,782.27 and 1,724.68 is: 2,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.24 : 4,782.27 = 1,724.68 : x
  2. Step 2: Convert to fraction form
    3,187.24/4,782.27 = 1,724.68/x
  3. Step 3: Cross multiply
    3,187.24x = 4,782.27 × 1,724.68
  4. Step 4: Simplify right side
    3,187.24x = 8,247,885.42
  5. Step 5: Solve for x
    x = 8,247,885.42/3,187.24
  6. Step 6: Final answer
    x = 2,587.78

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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.