Home / 3,934.79-5,430.03-2,256.26

Finding the Fourth Proportional to 3,934.79, 5,430.03 and 2,256.26

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Solution

The fourth proportional to 3,934.79, 5,430.03 and 2,256.26 is: 3,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.79 : 5,430.03 = 2,256.26 : x
  2. Step 2: Convert to fraction form
    3,934.79/5,430.03 = 2,256.26/x
  3. Step 3: Cross multiply
    3,934.79x = 5,430.03 × 2,256.26
  4. Step 4: Simplify right side
    3,934.79x = 12,251,559.49
  5. Step 5: Solve for x
    x = 12,251,559.49/3,934.79
  6. Step 6: Final answer
    x = 3,113.65

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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.