Home / 2,119.04-3,175.32-1,252.40

Finding the Fourth Proportional to 2,119.04, 3,175.32 and 1,252.40

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Solution

The fourth proportional to 2,119.04, 3,175.32 and 1,252.40 is: 1,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.04 : 3,175.32 = 1,252.40 : x
  2. Step 2: Convert to fraction form
    2,119.04/3,175.32 = 1,252.40/x
  3. Step 3: Cross multiply
    2,119.04x = 3,175.32 × 1,252.40
  4. Step 4: Simplify right side
    2,119.04x = 3,976,770.77
  5. Step 5: Solve for x
    x = 3,976,770.77/2,119.04
  6. Step 6: Final answer
    x = 1,876.69

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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.