Home / 1,223.09-1,834.45-401.36

Finding the Fourth Proportional to 1,223.09, 1,834.45 and 401.36

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Solution

The fourth proportional to 1,223.09, 1,834.45 and 401.36 is: 601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.09 : 1,834.45 = 401.36 : x
  2. Step 2: Convert to fraction form
    1,223.09/1,834.45 = 401.36/x
  3. Step 3: Cross multiply
    1,223.09x = 1,834.45 × 401.36
  4. Step 4: Simplify right side
    1,223.09x = 736,274.85
  5. Step 5: Solve for x
    x = 736,274.85/1,223.09
  6. Step 6: Final answer
    x = 601.98

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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.