Home / 6,443.82-9,665.40-3,776.89

Finding the Fourth Proportional to 6,443.82, 9,665.40 and 3,776.89

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Solution

The fourth proportional to 6,443.82, 9,665.40 and 3,776.89 is: 5,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.82 : 9,665.40 = 3,776.89 : x
  2. Step 2: Convert to fraction form
    6,443.82/9,665.40 = 3,776.89/x
  3. Step 3: Cross multiply
    6,443.82x = 9,665.40 × 3,776.89
  4. Step 4: Simplify right side
    6,443.82x = 36,505,152.61
  5. Step 5: Solve for x
    x = 36,505,152.61/6,443.82
  6. Step 6: Final answer
    x = 5,665.14

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1.5x scale

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.