Home / 3,135.42-4,322.76-2,604.78

Finding the Fourth Proportional to 3,135.42, 4,322.76 and 2,604.78

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Solution

The fourth proportional to 3,135.42, 4,322.76 and 2,604.78 is: 3,591.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.42 : 4,322.76 = 2,604.78 : x
  2. Step 2: Convert to fraction form
    3,135.42/4,322.76 = 2,604.78/x
  3. Step 3: Cross multiply
    3,135.42x = 4,322.76 × 2,604.78
  4. Step 4: Simplify right side
    3,135.42x = 11,259,838.79
  5. Step 5: Solve for x
    x = 11,259,838.79/3,135.42
  6. Step 6: Final answer
    x = 3,591.17

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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.