Home / 5,538.78-7,643.16-3,442.50

Finding the Fourth Proportional to 5,538.78, 7,643.16 and 3,442.50

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Solution

The fourth proportional to 5,538.78, 7,643.16 and 3,442.50 is: 4,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.78 : 7,643.16 = 3,442.50 : x
  2. Step 2: Convert to fraction form
    5,538.78/7,643.16 = 3,442.50/x
  3. Step 3: Cross multiply
    5,538.78x = 7,643.16 × 3,442.50
  4. Step 4: Simplify right side
    5,538.78x = 26,311,578.30
  5. Step 5: Solve for x
    x = 26,311,578.30/5,538.78
  6. Step 6: Final answer
    x = 4,750.43

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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.