Home / 1,277.78-1,914.01-1,233.72

Finding the Fourth Proportional to 1,277.78, 1,914.01 and 1,233.72

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Solution

The fourth proportional to 1,277.78, 1,914.01 and 1,233.72 is: 1,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.78 : 1,914.01 = 1,233.72 : x
  2. Step 2: Convert to fraction form
    1,277.78/1,914.01 = 1,233.72/x
  3. Step 3: Cross multiply
    1,277.78x = 1,914.01 × 1,233.72
  4. Step 4: Simplify right side
    1,277.78x = 2,361,352.42
  5. Step 5: Solve for x
    x = 2,361,352.42/1,277.78
  6. Step 6: Final answer
    x = 1,848.01

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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.