Home / 3,636.88-5,019.10-2,145.66

Finding the Fourth Proportional to 3,636.88, 5,019.10 and 2,145.66

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Solution

The fourth proportional to 3,636.88, 5,019.10 and 2,145.66 is: 2,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.88 : 5,019.10 = 2,145.66 : x
  2. Step 2: Convert to fraction form
    3,636.88/5,019.10 = 2,145.66/x
  3. Step 3: Cross multiply
    3,636.88x = 5,019.10 × 2,145.66
  4. Step 4: Simplify right side
    3,636.88x = 10,769,282.11
  5. Step 5: Solve for x
    x = 10,769,282.11/3,636.88
  6. Step 6: Final answer
    x = 2,961.13

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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.