Home / 3,240.78-4,472.94-2,061.62

Finding the Fourth Proportional to 3,240.78, 4,472.94 and 2,061.62

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Solution

The fourth proportional to 3,240.78, 4,472.94 and 2,061.62 is: 2,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.78 : 4,472.94 = 2,061.62 : x
  2. Step 2: Convert to fraction form
    3,240.78/4,472.94 = 2,061.62/x
  3. Step 3: Cross multiply
    3,240.78x = 4,472.94 × 2,061.62
  4. Step 4: Simplify right side
    3,240.78x = 9,221,502.56
  5. Step 5: Solve for x
    x = 9,221,502.56/3,240.78
  6. Step 6: Final answer
    x = 2,845.46

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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.