Home / 1,151.13-1,727.01-945.21

Finding the Fourth Proportional to 1,151.13, 1,727.01 and 945.21

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Solution

The fourth proportional to 1,151.13, 1,727.01 and 945.21 is: 1,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.13 : 1,727.01 = 945.21 : x
  2. Step 2: Convert to fraction form
    1,151.13/1,727.01 = 945.21/x
  3. Step 3: Cross multiply
    1,151.13x = 1,727.01 × 945.21
  4. Step 4: Simplify right side
    1,151.13x = 1,632,387.12
  5. Step 5: Solve for x
    x = 1,632,387.12/1,151.13
  6. Step 6: Final answer
    x = 1,418.07

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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.