Home / 4,981.22-6,873.95-2,857.11

Finding the Fourth Proportional to 4,981.22, 6,873.95 and 2,857.11

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Solution

The fourth proportional to 4,981.22, 6,873.95 and 2,857.11 is: 3,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.22 : 6,873.95 = 2,857.11 : x
  2. Step 2: Convert to fraction form
    4,981.22/6,873.95 = 2,857.11/x
  3. Step 3: Cross multiply
    4,981.22x = 6,873.95 × 2,857.11
  4. Step 4: Simplify right side
    4,981.22x = 19,639,638.43
  5. Step 5: Solve for x
    x = 19,639,638.43/4,981.22
  6. Step 6: Final answer
    x = 3,942.73

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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.