Home / 6,565.80-9,845.40-2,181.72

Finding the Fourth Proportional to 6,565.80, 9,845.40 and 2,181.72

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Solution

The fourth proportional to 6,565.80, 9,845.40 and 2,181.72 is: 3,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,565.80 : 9,845.40 = 2,181.72 : x
  2. Step 2: Convert to fraction form
    6,565.80/9,845.40 = 2,181.72/x
  3. Step 3: Cross multiply
    6,565.80x = 9,845.40 × 2,181.72
  4. Step 4: Simplify right side
    6,565.80x = 21,479,906.09
  5. Step 5: Solve for x
    x = 21,479,906.09/6,565.80
  6. Step 6: Final answer
    x = 3,271.48

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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.