Home / 3,124.42-4,311.66-1,727.20

Finding the Fourth Proportional to 3,124.42, 4,311.66 and 1,727.20

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Solution

The fourth proportional to 3,124.42, 4,311.66 and 1,727.20 is: 2,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.42 : 4,311.66 = 1,727.20 : x
  2. Step 2: Convert to fraction form
    3,124.42/4,311.66 = 1,727.20/x
  3. Step 3: Cross multiply
    3,124.42x = 4,311.66 × 1,727.20
  4. Step 4: Simplify right side
    3,124.42x = 7,447,099.15
  5. Step 5: Solve for x
    x = 7,447,099.15/3,124.42
  6. Step 6: Final answer
    x = 2,383.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.