Home / 3,647.18-5,469.92-1,455.32

Finding the Fourth Proportional to 3,647.18, 5,469.92 and 1,455.32

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Solution

The fourth proportional to 3,647.18, 5,469.92 and 1,455.32 is: 2,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.18 : 5,469.92 = 1,455.32 : x
  2. Step 2: Convert to fraction form
    3,647.18/5,469.92 = 1,455.32/x
  3. Step 3: Cross multiply
    3,647.18x = 5,469.92 × 1,455.32
  4. Step 4: Simplify right side
    3,647.18x = 7,960,483.97
  5. Step 5: Solve for x
    x = 7,960,483.97/3,647.18
  6. Step 6: Final answer
    x = 2,182.64

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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.