Home / 6,531.12-9,012.69-3,878.46

Finding the Fourth Proportional to 6,531.12, 9,012.69 and 3,878.46

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Solution

The fourth proportional to 6,531.12, 9,012.69 and 3,878.46 is: 5,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.12 : 9,012.69 = 3,878.46 : x
  2. Step 2: Convert to fraction form
    6,531.12/9,012.69 = 3,878.46/x
  3. Step 3: Cross multiply
    6,531.12x = 9,012.69 × 3,878.46
  4. Step 4: Simplify right side
    6,531.12x = 34,955,357.66
  5. Step 5: Solve for x
    x = 34,955,357.66/6,531.12
  6. Step 6: Final answer
    x = 5,352.12

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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.