Home / 3,971.40-5,952.78-2,585.70

Finding the Fourth Proportional to 3,971.40, 5,952.78 and 2,585.70

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Solution

The fourth proportional to 3,971.40, 5,952.78 and 2,585.70 is: 3,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.40 : 5,952.78 = 2,585.70 : x
  2. Step 2: Convert to fraction form
    3,971.40/5,952.78 = 2,585.70/x
  3. Step 3: Cross multiply
    3,971.40x = 5,952.78 × 2,585.70
  4. Step 4: Simplify right side
    3,971.40x = 15,392,103.25
  5. Step 5: Solve for x
    x = 15,392,103.25/3,971.40
  6. Step 6: Final answer
    x = 3,875.74

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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.