Home / 3,934.24-5,429.52-2,278.24

Finding the Fourth Proportional to 3,934.24, 5,429.52 and 2,278.24

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Solution

The fourth proportional to 3,934.24, 5,429.52 and 2,278.24 is: 3,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.24 : 5,429.52 = 2,278.24 : x
  2. Step 2: Convert to fraction form
    3,934.24/5,429.52 = 2,278.24/x
  3. Step 3: Cross multiply
    3,934.24x = 5,429.52 × 2,278.24
  4. Step 4: Simplify right side
    3,934.24x = 12,369,749.64
  5. Step 5: Solve for x
    x = 12,369,749.64/3,934.24
  6. Step 6: Final answer
    x = 3,144.13

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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.