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Finding the Fourth Proportional to 1,967.52, 2,715.48 and 1,182

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Solution

The fourth proportional to 1,967.52, 2,715.48 and 1,182 is: 1,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967.52 : 2,715.48 = 1,182 : x
  2. Step 2: Convert to fraction form
    1,967.52/2,715.48 = 1,182/x
  3. Step 3: Cross multiply
    1,967.52x = 2,715.48 × 1,182
  4. Step 4: Simplify right side
    1,967.52x = 3,209,697.36
  5. Step 5: Solve for x
    x = 3,209,697.36/1,967.52
  6. Step 6: Final answer
    x = 1,631.34

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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.