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Finding the Fourth Proportional to 1,967.22, 2,945.57 and 1,540.80

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Solution

The fourth proportional to 1,967.22, 2,945.57 and 1,540.80 is: 2,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967.22 : 2,945.57 = 1,540.80 : x
  2. Step 2: Convert to fraction form
    1,967.22/2,945.57 = 1,540.80/x
  3. Step 3: Cross multiply
    1,967.22x = 2,945.57 × 1,540.80
  4. Step 4: Simplify right side
    1,967.22x = 4,538,526.55
  5. Step 5: Solve for x
    x = 4,538,526.55/1,967.22
  6. Step 6: Final answer
    x = 2,307.08

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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.