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Finding the Fourth Proportional to 1,777.91, 2,452.75 and 1,069.56

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Solution

The fourth proportional to 1,777.91, 2,452.75 and 1,069.56 is: 1,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.91 : 2,452.75 = 1,069.56 : x
  2. Step 2: Convert to fraction form
    1,777.91/2,452.75 = 1,069.56/x
  3. Step 3: Cross multiply
    1,777.91x = 2,452.75 × 1,069.56
  4. Step 4: Simplify right side
    1,777.91x = 2,623,360.62
  5. Step 5: Solve for x
    x = 2,623,360.62/1,777.91
  6. Step 6: Final answer
    x = 1,475.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.