Home / 3,074.20-4,242.24-1,747.81

Finding the Fourth Proportional to 3,074.20, 4,242.24 and 1,747.81

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Solution

The fourth proportional to 3,074.20, 4,242.24 and 1,747.81 is: 2,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.20 : 4,242.24 = 1,747.81 : x
  2. Step 2: Convert to fraction form
    3,074.20/4,242.24 = 1,747.81/x
  3. Step 3: Cross multiply
    3,074.20x = 4,242.24 × 1,747.81
  4. Step 4: Simplify right side
    3,074.20x = 7,414,629.49
  5. Step 5: Solve for x
    x = 7,414,629.49/3,074.20
  6. Step 6: Final answer
    x = 2,411.89

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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.