Home / 5,609.80-7,745.64-3,621.52

Finding the Fourth Proportional to 5,609.80, 7,745.64 and 3,621.52

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Solution

The fourth proportional to 5,609.80, 7,745.64 and 3,621.52 is: 5,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.80 : 7,745.64 = 3,621.52 : x
  2. Step 2: Convert to fraction form
    5,609.80/7,745.64 = 3,621.52/x
  3. Step 3: Cross multiply
    5,609.80x = 7,745.64 × 3,621.52
  4. Step 4: Simplify right side
    5,609.80x = 28,050,990.17
  5. Step 5: Solve for x
    x = 28,050,990.17/5,609.80
  6. Step 6: Final answer
    x = 5,000.35

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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.