Home / 3,540.78-5,312.25-1,810.62

Finding the Fourth Proportional to 3,540.78, 5,312.25 and 1,810.62

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Solution

The fourth proportional to 3,540.78, 5,312.25 and 1,810.62 is: 2,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.78 : 5,312.25 = 1,810.62 : x
  2. Step 2: Convert to fraction form
    3,540.78/5,312.25 = 1,810.62/x
  3. Step 3: Cross multiply
    3,540.78x = 5,312.25 × 1,810.62
  4. Step 4: Simplify right side
    3,540.78x = 9,618,466.10
  5. Step 5: Solve for x
    x = 9,618,466.10/3,540.78
  6. Step 6: Final answer
    x = 2,716.48

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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.