Home / 2,219.39-3,329.90-985.92

Finding the Fourth Proportional to 2,219.39, 3,329.90 and 985.92

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Solution

The fourth proportional to 2,219.39, 3,329.90 and 985.92 is: 1,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.39 : 3,329.90 = 985.92 : x
  2. Step 2: Convert to fraction form
    2,219.39/3,329.90 = 985.92/x
  3. Step 3: Cross multiply
    2,219.39x = 3,329.90 × 985.92
  4. Step 4: Simplify right side
    2,219.39x = 3,283,010.08
  5. Step 5: Solve for x
    x = 3,283,010.08/2,219.39
  6. Step 6: Final answer
    x = 1,479.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.