Home / 6,431.80-9,648.42-2,047.72

Finding the Fourth Proportional to 6,431.80, 9,648.42 and 2,047.72

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Solution

The fourth proportional to 6,431.80, 9,648.42 and 2,047.72 is: 3,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.80 : 9,648.42 = 2,047.72 : x
  2. Step 2: Convert to fraction form
    6,431.80/9,648.42 = 2,047.72/x
  3. Step 3: Cross multiply
    6,431.80x = 9,648.42 × 2,047.72
  4. Step 4: Simplify right side
    6,431.80x = 19,757,262.60
  5. Step 5: Solve for x
    x = 19,757,262.60/6,431.80
  6. Step 6: Final answer
    x = 3,071.81

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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.