Home / 5,188.88-7,779.12-3,541.28

Finding the Fourth Proportional to 5,188.88, 7,779.12 and 3,541.28

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Solution

The fourth proportional to 5,188.88, 7,779.12 and 3,541.28 is: 5,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.88 : 7,779.12 = 3,541.28 : x
  2. Step 2: Convert to fraction form
    5,188.88/7,779.12 = 3,541.28/x
  3. Step 3: Cross multiply
    5,188.88x = 7,779.12 × 3,541.28
  4. Step 4: Simplify right side
    5,188.88x = 27,548,042.07
  5. Step 5: Solve for x
    x = 27,548,042.07/5,188.88
  6. Step 6: Final answer
    x = 5,309.05

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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.