Home / 2,191.83-3,022.07-1,445.55

Finding the Fourth Proportional to 2,191.83, 3,022.07 and 1,445.55

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Solution

The fourth proportional to 2,191.83, 3,022.07 and 1,445.55 is: 1,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.83 : 3,022.07 = 1,445.55 : x
  2. Step 2: Convert to fraction form
    2,191.83/3,022.07 = 1,445.55/x
  3. Step 3: Cross multiply
    2,191.83x = 3,022.07 × 1,445.55
  4. Step 4: Simplify right side
    2,191.83x = 4,368,553.29
  5. Step 5: Solve for x
    x = 4,368,553.29/2,191.83
  6. Step 6: Final answer
    x = 1,993.11

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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.