Home / 3,421.07-4,721.43-2,095.65

Finding the Fourth Proportional to 3,421.07, 4,721.43 and 2,095.65

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Solution

The fourth proportional to 3,421.07, 4,721.43 and 2,095.65 is: 2,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.07 : 4,721.43 = 2,095.65 : x
  2. Step 2: Convert to fraction form
    3,421.07/4,721.43 = 2,095.65/x
  3. Step 3: Cross multiply
    3,421.07x = 4,721.43 × 2,095.65
  4. Step 4: Simplify right side
    3,421.07x = 9,894,464.78
  5. Step 5: Solve for x
    x = 9,894,464.78/3,421.07
  6. Step 6: Final answer
    x = 2,892.21

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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.