Home / 2,278.57-3,417.85-635.12

Finding the Fourth Proportional to 2,278.57, 3,417.85 and 635.12

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Solution

The fourth proportional to 2,278.57, 3,417.85 and 635.12 is: 952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.57 : 3,417.85 = 635.12 : x
  2. Step 2: Convert to fraction form
    2,278.57/3,417.85 = 635.12/x
  3. Step 3: Cross multiply
    2,278.57x = 3,417.85 × 635.12
  4. Step 4: Simplify right side
    2,278.57x = 2,170,744.89
  5. Step 5: Solve for x
    x = 2,170,744.89/2,278.57
  6. Step 6: Final answer
    x = 952.68

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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.