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Finding the Fourth Proportional to 5,871.88, 8,809.44 and 1,979.02

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Solution

The fourth proportional to 5,871.88, 8,809.44 and 1,979.02 is: 2,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.88 : 8,809.44 = 1,979.02 : x
  2. Step 2: Convert to fraction form
    5,871.88/8,809.44 = 1,979.02/x
  3. Step 3: Cross multiply
    5,871.88x = 8,809.44 × 1,979.02
  4. Step 4: Simplify right side
    5,871.88x = 17,434,057.95
  5. Step 5: Solve for x
    x = 17,434,057.95/5,871.88
  6. Step 6: Final answer
    x = 2,969.08

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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.