Home / 3,934.98-5,430.34-2,256.56

Finding the Fourth Proportional to 3,934.98, 5,430.34 and 2,256.56

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Solution

The fourth proportional to 3,934.98, 5,430.34 and 2,256.56 is: 3,114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.98 : 5,430.34 = 2,256.56 : x
  2. Step 2: Convert to fraction form
    3,934.98/5,430.34 = 2,256.56/x
  3. Step 3: Cross multiply
    3,934.98x = 5,430.34 × 2,256.56
  4. Step 4: Simplify right side
    3,934.98x = 12,253,884.06
  5. Step 5: Solve for x
    x = 12,253,884.06/3,934.98
  6. Step 6: Final answer
    x = 3,114.09

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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.