Home / 4,981.20-6,873.79-2,742.65

Finding the Fourth Proportional to 4,981.20, 6,873.79 and 2,742.65

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Solution

The fourth proportional to 4,981.20, 6,873.79 and 2,742.65 is: 3,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.20 : 6,873.79 = 2,742.65 : x
  2. Step 2: Convert to fraction form
    4,981.20/6,873.79 = 2,742.65/x
  3. Step 3: Cross multiply
    4,981.20x = 6,873.79 × 2,742.65
  4. Step 4: Simplify right side
    4,981.20x = 18,852,386.43
  5. Step 5: Solve for x
    x = 18,852,386.43/4,981.20
  6. Step 6: Final answer
    x = 3,784.71

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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.