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Finding the Fourth Proportional to 1,079.32, 1,615.90 and 733.33

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Solution

The fourth proportional to 1,079.32, 1,615.90 and 733.33 is: 1,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.32 : 1,615.90 = 733.33 : x
  2. Step 2: Convert to fraction form
    1,079.32/1,615.90 = 733.33/x
  3. Step 3: Cross multiply
    1,079.32x = 1,615.90 × 733.33
  4. Step 4: Simplify right side
    1,079.32x = 1,184,987.28
  5. Step 5: Solve for x
    x = 1,184,987.28/1,079.32
  6. Step 6: Final answer
    x = 1,097.90

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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.