Home / 2,314.40-3,193.92-1,319.90

Finding the Fourth Proportional to 2,314.40, 3,193.92 and 1,319.90

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Solution

The fourth proportional to 2,314.40, 3,193.92 and 1,319.90 is: 1,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.40 : 3,193.92 = 1,319.90 : x
  2. Step 2: Convert to fraction form
    2,314.40/3,193.92 = 1,319.90/x
  3. Step 3: Cross multiply
    2,314.40x = 3,193.92 × 1,319.90
  4. Step 4: Simplify right side
    2,314.40x = 4,215,639.04
  5. Step 5: Solve for x
    x = 4,215,639.04/2,314.40
  6. Step 6: Final answer
    x = 1,821.49

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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.