Home / 6,438.23-9,654.61-3,666.21

Finding the Fourth Proportional to 6,438.23, 9,654.61 and 3,666.21

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Solution

The fourth proportional to 6,438.23, 9,654.61 and 3,666.21 is: 5,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.23 : 9,654.61 = 3,666.21 : x
  2. Step 2: Convert to fraction form
    6,438.23/9,654.61 = 3,666.21/x
  3. Step 3: Cross multiply
    6,438.23x = 9,654.61 × 3,666.21
  4. Step 4: Simplify right side
    6,438.23x = 35,395,827.73
  5. Step 5: Solve for x
    x = 35,395,827.73/6,438.23
  6. Step 6: Final answer
    x = 5,497.76

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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.