Home / 5,340.42-8,015.56-2,709.78

Finding the Fourth Proportional to 5,340.42, 8,015.56 and 2,709.78

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Solution

The fourth proportional to 5,340.42, 8,015.56 and 2,709.78 is: 4,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.42 : 8,015.56 = 2,709.78 : x
  2. Step 2: Convert to fraction form
    5,340.42/8,015.56 = 2,709.78/x
  3. Step 3: Cross multiply
    5,340.42x = 8,015.56 × 2,709.78
  4. Step 4: Simplify right side
    5,340.42x = 21,720,397.40
  5. Step 5: Solve for x
    x = 21,720,397.40/5,340.42
  6. Step 6: Final answer
    x = 4,067.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.