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Finding the Fourth Proportional to 2,053.62, 3,079.44 and 754.20

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Solution

The fourth proportional to 2,053.62, 3,079.44 and 754.20 is: 1,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.62 : 3,079.44 = 754.20 : x
  2. Step 2: Convert to fraction form
    2,053.62/3,079.44 = 754.20/x
  3. Step 3: Cross multiply
    2,053.62x = 3,079.44 × 754.20
  4. Step 4: Simplify right side
    2,053.62x = 2,322,513.65
  5. Step 5: Solve for x
    x = 2,322,513.65/2,053.62
  6. Step 6: Final answer
    x = 1,130.94

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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.