Home / 3,215.43-4,436.85-1,799.22

Finding the Fourth Proportional to 3,215.43, 4,436.85 and 1,799.22

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Solution

The fourth proportional to 3,215.43, 4,436.85 and 1,799.22 is: 2,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.43 : 4,436.85 = 1,799.22 : x
  2. Step 2: Convert to fraction form
    3,215.43/4,436.85 = 1,799.22/x
  3. Step 3: Cross multiply
    3,215.43x = 4,436.85 × 1,799.22
  4. Step 4: Simplify right side
    3,215.43x = 7,982,869.26
  5. Step 5: Solve for x
    x = 7,982,869.26/3,215.43
  6. Step 6: Final answer
    x = 2,482.68

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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.