Home / 1,277.60-1,912.20-1,044.64

Finding the Fourth Proportional to 1,277.60, 1,912.20 and 1,044.64

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Solution

The fourth proportional to 1,277.60, 1,912.20 and 1,044.64 is: 1,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.60 : 1,912.20 = 1,044.64 : x
  2. Step 2: Convert to fraction form
    1,277.60/1,912.20 = 1,044.64/x
  3. Step 3: Cross multiply
    1,277.60x = 1,912.20 × 1,044.64
  4. Step 4: Simplify right side
    1,277.60x = 1,997,560.61
  5. Step 5: Solve for x
    x = 1,997,560.61/1,277.60
  6. Step 6: Final answer
    x = 1,563.53

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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.