Home / 1,344.08-2,019.60-1,261.06

Finding the Fourth Proportional to 1,344.08, 2,019.60 and 1,261.06

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Solution

The fourth proportional to 1,344.08, 2,019.60 and 1,261.06 is: 1,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.08 : 2,019.60 = 1,261.06 : x
  2. Step 2: Convert to fraction form
    1,344.08/2,019.60 = 1,261.06/x
  3. Step 3: Cross multiply
    1,344.08x = 2,019.60 × 1,261.06
  4. Step 4: Simplify right side
    1,344.08x = 2,546,831.73
  5. Step 5: Solve for x
    x = 2,546,831.73/1,344.08
  6. Step 6: Final answer
    x = 1,894.85

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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.