Home / 3,568.78-5,345.54-2,898.65

Finding the Fourth Proportional to 3,568.78, 5,345.54 and 2,898.65

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Solution

The fourth proportional to 3,568.78, 5,345.54 and 2,898.65 is: 4,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.78 : 5,345.54 = 2,898.65 : x
  2. Step 2: Convert to fraction form
    3,568.78/5,345.54 = 2,898.65/x
  3. Step 3: Cross multiply
    3,568.78x = 5,345.54 × 2,898.65
  4. Step 4: Simplify right side
    3,568.78x = 15,494,859.26
  5. Step 5: Solve for x
    x = 15,494,859.26/3,568.78
  6. Step 6: Final answer
    x = 4,341.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.