Home / 5,115.36-7,057.40-3,348

Finding the Fourth Proportional to 5,115.36, 7,057.40 and 3,348

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Solution

The fourth proportional to 5,115.36, 7,057.40 and 3,348 is: 4,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.36 : 7,057.40 = 3,348 : x
  2. Step 2: Convert to fraction form
    5,115.36/7,057.40 = 3,348/x
  3. Step 3: Cross multiply
    5,115.36x = 7,057.40 × 3,348
  4. Step 4: Simplify right side
    5,115.36x = 23,628,175.20
  5. Step 5: Solve for x
    x = 23,628,175.20/5,115.36
  6. Step 6: Final answer
    x = 4,619.06

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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.