Home / 2,317.12-3,198.21-1,432.42

Finding the Fourth Proportional to 2,317.12, 3,198.21 and 1,432.42

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Solution

The fourth proportional to 2,317.12, 3,198.21 and 1,432.42 is: 1,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.12 : 3,198.21 = 1,432.42 : x
  2. Step 2: Convert to fraction form
    2,317.12/3,198.21 = 1,432.42/x
  3. Step 3: Cross multiply
    2,317.12x = 3,198.21 × 1,432.42
  4. Step 4: Simplify right side
    2,317.12x = 4,581,179.97
  5. Step 5: Solve for x
    x = 4,581,179.97/2,317.12
  6. Step 6: Final answer
    x = 1,977.10

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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.