Home / 1,977.39-2,945.16-1,873.29

Finding the Fourth Proportional to 1,977.39, 2,945.16 and 1,873.29

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Solution

The fourth proportional to 1,977.39, 2,945.16 and 1,873.29 is: 2,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.39 : 2,945.16 = 1,873.29 : x
  2. Step 2: Convert to fraction form
    1,977.39/2,945.16 = 1,873.29/x
  3. Step 3: Cross multiply
    1,977.39x = 2,945.16 × 1,873.29
  4. Step 4: Simplify right side
    1,977.39x = 5,517,138.78
  5. Step 5: Solve for x
    x = 5,517,138.78/1,977.39
  6. Step 6: Final answer
    x = 2,790.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.