Home / 2,876.19-3,969.15-1,617.32

Finding the Fourth Proportional to 2,876.19, 3,969.15 and 1,617.32

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Solution

The fourth proportional to 2,876.19, 3,969.15 and 1,617.32 is: 2,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.19 : 3,969.15 = 1,617.32 : x
  2. Step 2: Convert to fraction form
    2,876.19/3,969.15 = 1,617.32/x
  3. Step 3: Cross multiply
    2,876.19x = 3,969.15 × 1,617.32
  4. Step 4: Simplify right side
    2,876.19x = 6,419,385.68
  5. Step 5: Solve for x
    x = 6,419,385.68/2,876.19
  6. Step 6: Final answer
    x = 2,231.91

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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.