Home / 3,934.23-5,430.16-2,255.61

Finding the Fourth Proportional to 3,934.23, 5,430.16 and 2,255.61

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Solution

The fourth proportional to 3,934.23, 5,430.16 and 2,255.61 is: 3,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.23 : 5,430.16 = 2,255.61 : x
  2. Step 2: Convert to fraction form
    3,934.23/5,430.16 = 2,255.61/x
  3. Step 3: Cross multiply
    3,934.23x = 5,430.16 × 2,255.61
  4. Step 4: Simplify right side
    3,934.23x = 12,248,296.05
  5. Step 5: Solve for x
    x = 12,248,296.05/3,934.23
  6. Step 6: Final answer
    x = 3,113.27

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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.