Home / 2,837.85-3,917.61-1,894.20

Finding the Fourth Proportional to 2,837.85, 3,917.61 and 1,894.20

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Solution

The fourth proportional to 2,837.85, 3,917.61 and 1,894.20 is: 2,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.85 : 3,917.61 = 1,894.20 : x
  2. Step 2: Convert to fraction form
    2,837.85/3,917.61 = 1,894.20/x
  3. Step 3: Cross multiply
    2,837.85x = 3,917.61 × 1,894.20
  4. Step 4: Simplify right side
    2,837.85x = 7,420,736.86
  5. Step 5: Solve for x
    x = 7,420,736.86/2,837.85
  6. Step 6: Final answer
    x = 2,614.92

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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.