Home / 2,284.20-3,422.70-985.32

Finding the Fourth Proportional to 2,284.20, 3,422.70 and 985.32

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Solution

The fourth proportional to 2,284.20, 3,422.70 and 985.32 is: 1,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.20 : 3,422.70 = 985.32 : x
  2. Step 2: Convert to fraction form
    2,284.20/3,422.70 = 985.32/x
  3. Step 3: Cross multiply
    2,284.20x = 3,422.70 × 985.32
  4. Step 4: Simplify right side
    2,284.20x = 3,372,454.76
  5. Step 5: Solve for x
    x = 3,372,454.76/2,284.20
  6. Step 6: Final answer
    x = 1,476.43

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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.