Home / 4,943.89-6,821.90-2,847.61

Finding the Fourth Proportional to 4,943.89, 6,821.90 and 2,847.61

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Solution

The fourth proportional to 4,943.89, 6,821.90 and 2,847.61 is: 3,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.89 : 6,821.90 = 2,847.61 : x
  2. Step 2: Convert to fraction form
    4,943.89/6,821.90 = 2,847.61/x
  3. Step 3: Cross multiply
    4,943.89x = 6,821.90 × 2,847.61
  4. Step 4: Simplify right side
    4,943.89x = 19,426,076.55
  5. Step 5: Solve for x
    x = 19,426,076.55/4,943.89
  6. Step 6: Final answer
    x = 3,929.31

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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.