Home / 2,191.05-3,022.05-1,350.66

Finding the Fourth Proportional to 2,191.05, 3,022.05 and 1,350.66

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Solution

The fourth proportional to 2,191.05, 3,022.05 and 1,350.66 is: 1,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.05 : 3,022.05 = 1,350.66 : x
  2. Step 2: Convert to fraction form
    2,191.05/3,022.05 = 1,350.66/x
  3. Step 3: Cross multiply
    2,191.05x = 3,022.05 × 1,350.66
  4. Step 4: Simplify right side
    2,191.05x = 4,081,762.05
  5. Step 5: Solve for x
    x = 4,081,762.05/2,191.05
  6. Step 6: Final answer
    x = 1,862.93

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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.