Home / 2,854.82-3,939.36-1,676.28

Finding the Fourth Proportional to 2,854.82, 3,939.36 and 1,676.28

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Solution

The fourth proportional to 2,854.82, 3,939.36 and 1,676.28 is: 2,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.82 : 3,939.36 = 1,676.28 : x
  2. Step 2: Convert to fraction form
    2,854.82/3,939.36 = 1,676.28/x
  3. Step 3: Cross multiply
    2,854.82x = 3,939.36 × 1,676.28
  4. Step 4: Simplify right side
    2,854.82x = 6,603,470.38
  5. Step 5: Solve for x
    x = 6,603,470.38/2,854.82
  6. Step 6: Final answer
    x = 2,313.10

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1.5x scale

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.