Home / 4,981.76-6,874.71-2,885.75

Finding the Fourth Proportional to 4,981.76, 6,874.71 and 2,885.75

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Solution

The fourth proportional to 4,981.76, 6,874.71 and 2,885.75 is: 3,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.76 : 6,874.71 = 2,885.75 : x
  2. Step 2: Convert to fraction form
    4,981.76/6,874.71 = 2,885.75/x
  3. Step 3: Cross multiply
    4,981.76x = 6,874.71 × 2,885.75
  4. Step 4: Simplify right side
    4,981.76x = 19,838,694.38
  5. Step 5: Solve for x
    x = 19,838,694.38/4,981.76
  6. Step 6: Final answer
    x = 3,982.27

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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.