Home / 5,352.80-8,018.40-3,711.20

Finding the Fourth Proportional to 5,352.80, 8,018.40 and 3,711.20

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Solution

The fourth proportional to 5,352.80, 8,018.40 and 3,711.20 is: 5,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,352.80 : 8,018.40 = 3,711.20 : x
  2. Step 2: Convert to fraction form
    5,352.80/8,018.40 = 3,711.20/x
  3. Step 3: Cross multiply
    5,352.80x = 8,018.40 × 3,711.20
  4. Step 4: Simplify right side
    5,352.80x = 29,757,886.08
  5. Step 5: Solve for x
    x = 29,757,886.08/5,352.80
  6. Step 6: Final answer
    x = 5,559.31

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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.