Home / 1,223.53-1,831.19-1,018.51

Finding the Fourth Proportional to 1,223.53, 1,831.19 and 1,018.51

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Solution

The fourth proportional to 1,223.53, 1,831.19 and 1,018.51 is: 1,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.53 : 1,831.19 = 1,018.51 : x
  2. Step 2: Convert to fraction form
    1,223.53/1,831.19 = 1,018.51/x
  3. Step 3: Cross multiply
    1,223.53x = 1,831.19 × 1,018.51
  4. Step 4: Simplify right side
    1,223.53x = 1,865,085.33
  5. Step 5: Solve for x
    x = 1,865,085.33/1,223.53
  6. Step 6: Final answer
    x = 1,524.35

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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.