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Finding the Fourth Proportional to 1,351.61, 2,027.73 and 529.65

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Solution

The fourth proportional to 1,351.61, 2,027.73 and 529.65 is: 794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.61 : 2,027.73 = 529.65 : x
  2. Step 2: Convert to fraction form
    1,351.61/2,027.73 = 529.65/x
  3. Step 3: Cross multiply
    1,351.61x = 2,027.73 × 529.65
  4. Step 4: Simplify right side
    1,351.61x = 1,073,987.19
  5. Step 5: Solve for x
    x = 1,073,987.19/1,351.61
  6. Step 6: Final answer
    x = 794.60

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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.