Home / 3,319.68-4,581.12-1,922.56

Finding the Fourth Proportional to 3,319.68, 4,581.12 and 1,922.56

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Solution

The fourth proportional to 3,319.68, 4,581.12 and 1,922.56 is: 2,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.68 : 4,581.12 = 1,922.56 : x
  2. Step 2: Convert to fraction form
    3,319.68/4,581.12 = 1,922.56/x
  3. Step 3: Cross multiply
    3,319.68x = 4,581.12 × 1,922.56
  4. Step 4: Simplify right side
    3,319.68x = 8,807,478.07
  5. Step 5: Solve for x
    x = 8,807,478.07/3,319.68
  6. Step 6: Final answer
    x = 2,653.11

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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.