Home / 3,948.51-5,915.48-3,511.11

Finding the Fourth Proportional to 3,948.51, 5,915.48 and 3,511.11

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Solution

The fourth proportional to 3,948.51, 5,915.48 and 3,511.11 is: 5,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.51 : 5,915.48 = 3,511.11 : x
  2. Step 2: Convert to fraction form
    3,948.51/5,915.48 = 3,511.11/x
  3. Step 3: Cross multiply
    3,948.51x = 5,915.48 × 3,511.11
  4. Step 4: Simplify right side
    3,948.51x = 20,769,883.43
  5. Step 5: Solve for x
    x = 20,769,883.43/3,948.51
  6. Step 6: Final answer
    x = 5,260.18

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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.