Home / 1,469.73-2,214.71-1,215.45

Finding the Fourth Proportional to 1,469.73, 2,214.71 and 1,215.45

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Solution

The fourth proportional to 1,469.73, 2,214.71 and 1,215.45 is: 1,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.73 : 2,214.71 = 1,215.45 : x
  2. Step 2: Convert to fraction form
    1,469.73/2,214.71 = 1,215.45/x
  3. Step 3: Cross multiply
    1,469.73x = 2,214.71 × 1,215.45
  4. Step 4: Simplify right side
    1,469.73x = 2,691,872.74
  5. Step 5: Solve for x
    x = 2,691,872.74/1,469.73
  6. Step 6: Final answer
    x = 1,831.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.