Home / 4,917.02-6,784.88-2,791.78

Finding the Fourth Proportional to 4,917.02, 6,784.88 and 2,791.78

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Solution

The fourth proportional to 4,917.02, 6,784.88 and 2,791.78 is: 3,852.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.02 : 6,784.88 = 2,791.78 : x
  2. Step 2: Convert to fraction form
    4,917.02/6,784.88 = 2,791.78/x
  3. Step 3: Cross multiply
    4,917.02x = 6,784.88 × 2,791.78
  4. Step 4: Simplify right side
    4,917.02x = 18,941,892.29
  5. Step 5: Solve for x
    x = 18,941,892.29/4,917.02
  6. Step 6: Final answer
    x = 3,852.31

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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.