Home / 2,983.66-4,120.08-1,866.52

Finding the Fourth Proportional to 2,983.66, 4,120.08 and 1,866.52

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Solution

The fourth proportional to 2,983.66, 4,120.08 and 1,866.52 is: 2,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.66 : 4,120.08 = 1,866.52 : x
  2. Step 2: Convert to fraction form
    2,983.66/4,120.08 = 1,866.52/x
  3. Step 3: Cross multiply
    2,983.66x = 4,120.08 × 1,866.52
  4. Step 4: Simplify right side
    2,983.66x = 7,690,211.72
  5. Step 5: Solve for x
    x = 7,690,211.72/2,983.66
  6. Step 6: Final answer
    x = 2,577.44

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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.