Home / 1,223.93-1,831.77-1,122.77

Finding the Fourth Proportional to 1,223.93, 1,831.77 and 1,122.77

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Solution

The fourth proportional to 1,223.93, 1,831.77 and 1,122.77 is: 1,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.93 : 1,831.77 = 1,122.77 : x
  2. Step 2: Convert to fraction form
    1,223.93/1,831.77 = 1,122.77/x
  3. Step 3: Cross multiply
    1,223.93x = 1,831.77 × 1,122.77
  4. Step 4: Simplify right side
    1,223.93x = 2,056,647.24
  5. Step 5: Solve for x
    x = 2,056,647.24/1,223.93
  6. Step 6: Final answer
    x = 1,680.37

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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.