Home / 2,876.16-3,969.56-1,757.75

Finding the Fourth Proportional to 2,876.16, 3,969.56 and 1,757.75

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Solution

The fourth proportional to 2,876.16, 3,969.56 and 1,757.75 is: 2,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.16 : 3,969.56 = 1,757.75 : x
  2. Step 2: Convert to fraction form
    2,876.16/3,969.56 = 1,757.75/x
  3. Step 3: Cross multiply
    2,876.16x = 3,969.56 × 1,757.75
  4. Step 4: Simplify right side
    2,876.16x = 6,977,465.45
  5. Step 5: Solve for x
    x = 6,977,465.45/2,876.16
  6. Step 6: Final answer
    x = 2,425.97

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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.