Home / 3,074.20-4,242.39-1,747.87

Finding the Fourth Proportional to 3,074.20, 4,242.39 and 1,747.87

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Solution

The fourth proportional to 3,074.20, 4,242.39 and 1,747.87 is: 2,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.20 : 4,242.39 = 1,747.87 : x
  2. Step 2: Convert to fraction form
    3,074.20/4,242.39 = 1,747.87/x
  3. Step 3: Cross multiply
    3,074.20x = 4,242.39 × 1,747.87
  4. Step 4: Simplify right side
    3,074.20x = 7,415,146.21
  5. Step 5: Solve for x
    x = 7,415,146.21/3,074.20
  6. Step 6: Final answer
    x = 2,412.06

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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.