Home / 3,431.23-5,147.46-1,789.17

Finding the Fourth Proportional to 3,431.23, 5,147.46 and 1,789.17

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Solution

The fourth proportional to 3,431.23, 5,147.46 and 1,789.17 is: 2,684.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.23 : 5,147.46 = 1,789.17 : x
  2. Step 2: Convert to fraction form
    3,431.23/5,147.46 = 1,789.17/x
  3. Step 3: Cross multiply
    3,431.23x = 5,147.46 × 1,789.17
  4. Step 4: Simplify right side
    3,431.23x = 9,209,681.01
  5. Step 5: Solve for x
    x = 9,209,681.01/3,431.23
  6. Step 6: Final answer
    x = 2,684.08

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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.