Home / 1,979.83-2,973.12-1,650.43

Finding the Fourth Proportional to 1,979.83, 2,973.12 and 1,650.43

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Solution

The fourth proportional to 1,979.83, 2,973.12 and 1,650.43 is: 2,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.83 : 2,973.12 = 1,650.43 : x
  2. Step 2: Convert to fraction form
    1,979.83/2,973.12 = 1,650.43/x
  3. Step 3: Cross multiply
    1,979.83x = 2,973.12 × 1,650.43
  4. Step 4: Simplify right side
    1,979.83x = 4,906,926.44
  5. Step 5: Solve for x
    x = 4,906,926.44/1,979.83
  6. Step 6: Final answer
    x = 2,478.46

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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.