Home / 3,031.13-4,553.64-2,155.75

Finding the Fourth Proportional to 3,031.13, 4,553.64 and 2,155.75

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Solution

The fourth proportional to 3,031.13, 4,553.64 and 2,155.75 is: 3,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.13 : 4,553.64 = 2,155.75 : x
  2. Step 2: Convert to fraction form
    3,031.13/4,553.64 = 2,155.75/x
  3. Step 3: Cross multiply
    3,031.13x = 4,553.64 × 2,155.75
  4. Step 4: Simplify right side
    3,031.13x = 9,816,509.43
  5. Step 5: Solve for x
    x = 9,816,509.43/3,031.13
  6. Step 6: Final answer
    x = 3,238.56

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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.