Home / 4,969.52-6,858.78-2,874.86

Finding the Fourth Proportional to 4,969.52, 6,858.78 and 2,874.86

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Solution

The fourth proportional to 4,969.52, 6,858.78 and 2,874.86 is: 3,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.52 : 6,858.78 = 2,874.86 : x
  2. Step 2: Convert to fraction form
    4,969.52/6,858.78 = 2,874.86/x
  3. Step 3: Cross multiply
    4,969.52x = 6,858.78 × 2,874.86
  4. Step 4: Simplify right side
    4,969.52x = 19,718,032.27
  5. Step 5: Solve for x
    x = 19,718,032.27/4,969.52
  6. Step 6: Final answer
    x = 3,967.79

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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.