Home / 3,240.05-4,472.35-2,177.46

Finding the Fourth Proportional to 3,240.05, 4,472.35 and 2,177.46

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Solution

The fourth proportional to 3,240.05, 4,472.35 and 2,177.46 is: 3,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.05 : 4,472.35 = 2,177.46 : x
  2. Step 2: Convert to fraction form
    3,240.05/4,472.35 = 2,177.46/x
  3. Step 3: Cross multiply
    3,240.05x = 4,472.35 × 2,177.46
  4. Step 4: Simplify right side
    3,240.05x = 9,738,363.23
  5. Step 5: Solve for x
    x = 9,738,363.23/3,240.05
  6. Step 6: Final answer
    x = 3,005.62

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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.