Home / 4,981.43-6,874.77-2,857.16

Finding the Fourth Proportional to 4,981.43, 6,874.77 and 2,857.16

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Solution

The fourth proportional to 4,981.43, 6,874.77 and 2,857.16 is: 3,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.43 : 6,874.77 = 2,857.16 : x
  2. Step 2: Convert to fraction form
    4,981.43/6,874.77 = 2,857.16/x
  3. Step 3: Cross multiply
    4,981.43x = 6,874.77 × 2,857.16
  4. Step 4: Simplify right side
    4,981.43x = 19,642,317.85
  5. Step 5: Solve for x
    x = 19,642,317.85/4,981.43
  6. Step 6: Final answer
    x = 3,943.11

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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.