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Finding the Fourth Proportional to 1,979.76, 2,966.94 and 1,101

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Solution

The fourth proportional to 1,979.76, 2,966.94 and 1,101 is: 1,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.76 : 2,966.94 = 1,101 : x
  2. Step 2: Convert to fraction form
    1,979.76/2,966.94 = 1,101/x
  3. Step 3: Cross multiply
    1,979.76x = 2,966.94 × 1,101
  4. Step 4: Simplify right side
    1,979.76x = 3,266,600.94
  5. Step 5: Solve for x
    x = 3,266,600.94/1,979.76
  6. Step 6: Final answer
    x = 1,650.00

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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.