Home / 2,138.32-2,948.88-1,350.96

Finding the Fourth Proportional to 2,138.32, 2,948.88 and 1,350.96

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Solution

The fourth proportional to 2,138.32, 2,948.88 and 1,350.96 is: 1,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.32 : 2,948.88 = 1,350.96 : x
  2. Step 2: Convert to fraction form
    2,138.32/2,948.88 = 1,350.96/x
  3. Step 3: Cross multiply
    2,138.32x = 2,948.88 × 1,350.96
  4. Step 4: Simplify right side
    2,138.32x = 3,983,818.92
  5. Step 5: Solve for x
    x = 3,983,818.92/2,138.32
  6. Step 6: Final answer
    x = 1,863.06

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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.