Home / 2,876.43-3,969.51-1,617.42

Finding the Fourth Proportional to 2,876.43, 3,969.51 and 1,617.42

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Solution

The fourth proportional to 2,876.43, 3,969.51 and 1,617.42 is: 2,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.43 : 3,969.51 = 1,617.42 : x
  2. Step 2: Convert to fraction form
    2,876.43/3,969.51 = 1,617.42/x
  3. Step 3: Cross multiply
    2,876.43x = 3,969.51 × 1,617.42
  4. Step 4: Simplify right side
    2,876.43x = 6,420,364.86
  5. Step 5: Solve for x
    x = 6,420,364.86/2,876.43
  6. Step 6: Final answer
    x = 2,232.06

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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.