Home / 3,837.40-5,752.05-2,190.40

Finding the Fourth Proportional to 3,837.40, 5,752.05 and 2,190.40

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Solution

The fourth proportional to 3,837.40, 5,752.05 and 2,190.40 is: 3,283.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.40 : 5,752.05 = 2,190.40 : x
  2. Step 2: Convert to fraction form
    3,837.40/5,752.05 = 2,190.40/x
  3. Step 3: Cross multiply
    3,837.40x = 5,752.05 × 2,190.40
  4. Step 4: Simplify right side
    3,837.40x = 12,599,290.32
  5. Step 5: Solve for x
    x = 12,599,290.32/3,837.40
  6. Step 6: Final answer
    x = 3,283.29

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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.