Home / 2,125.62-2,931.79-1,241.37

Finding the Fourth Proportional to 2,125.62, 2,931.79 and 1,241.37

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Solution

The fourth proportional to 2,125.62, 2,931.79 and 1,241.37 is: 1,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.62 : 2,931.79 = 1,241.37 : x
  2. Step 2: Convert to fraction form
    2,125.62/2,931.79 = 1,241.37/x
  3. Step 3: Cross multiply
    2,125.62x = 2,931.79 × 1,241.37
  4. Step 4: Simplify right side
    2,125.62x = 3,639,436.15
  5. Step 5: Solve for x
    x = 3,639,436.15/2,125.62
  6. Step 6: Final answer
    x = 1,712.18

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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.