Home / 3,251.60-4,486-2,072.40

Finding the Fourth Proportional to 3,251.60, 4,486 and 2,072.40

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Solution

The fourth proportional to 3,251.60, 4,486 and 2,072.40 is: 2,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.60 : 4,486 = 2,072.40 : x
  2. Step 2: Convert to fraction form
    3,251.60/4,486 = 2,072.40/x
  3. Step 3: Cross multiply
    3,251.60x = 4,486 × 2,072.40
  4. Step 4: Simplify right side
    3,251.60x = 9,296,786.40
  5. Step 5: Solve for x
    x = 9,296,786.40/3,251.60
  6. Step 6: Final answer
    x = 2,859.14

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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.