Home / 3,653.76-5,041.80-2,161.74

Finding the Fourth Proportional to 3,653.76, 5,041.80 and 2,161.74

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Solution

The fourth proportional to 3,653.76, 5,041.80 and 2,161.74 is: 2,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.76 : 5,041.80 = 2,161.74 : x
  2. Step 2: Convert to fraction form
    3,653.76/5,041.80 = 2,161.74/x
  3. Step 3: Cross multiply
    3,653.76x = 5,041.80 × 2,161.74
  4. Step 4: Simplify right side
    3,653.76x = 10,899,060.73
  5. Step 5: Solve for x
    x = 10,899,060.73/3,653.76
  6. Step 6: Final answer
    x = 2,982.97

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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.