Home / 1,222.05-1,833.26-400.13

Finding the Fourth Proportional to 1,222.05, 1,833.26 and 400.13

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Solution

The fourth proportional to 1,222.05, 1,833.26 and 400.13 is: 600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.05 : 1,833.26 = 400.13 : x
  2. Step 2: Convert to fraction form
    1,222.05/1,833.26 = 400.13/x
  3. Step 3: Cross multiply
    1,222.05x = 1,833.26 × 400.13
  4. Step 4: Simplify right side
    1,222.05x = 733,531.16
  5. Step 5: Solve for x
    x = 733,531.16/1,222.05
  6. Step 6: Final answer
    x = 600.25

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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.