Home / 3,644.30-5,031.43-2,891.16

Finding the Fourth Proportional to 3,644.30, 5,031.43 and 2,891.16

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Solution

The fourth proportional to 3,644.30, 5,031.43 and 2,891.16 is: 3,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.30 : 5,031.43 = 2,891.16 : x
  2. Step 2: Convert to fraction form
    3,644.30/5,031.43 = 2,891.16/x
  3. Step 3: Cross multiply
    3,644.30x = 5,031.43 × 2,891.16
  4. Step 4: Simplify right side
    3,644.30x = 14,546,661.93
  5. Step 5: Solve for x
    x = 14,546,661.93/3,644.30
  6. Step 6: Final answer
    x = 3,991.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.