Home / 5,315.04-7,979.85-3,375.90

Finding the Fourth Proportional to 5,315.04, 7,979.85 and 3,375.90

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Solution

The fourth proportional to 5,315.04, 7,979.85 and 3,375.90 is: 5,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.04 : 7,979.85 = 3,375.90 : x
  2. Step 2: Convert to fraction form
    5,315.04/7,979.85 = 3,375.90/x
  3. Step 3: Cross multiply
    5,315.04x = 7,979.85 × 3,375.90
  4. Step 4: Simplify right side
    5,315.04x = 26,939,175.62
  5. Step 5: Solve for x
    x = 26,939,175.62/5,315.04
  6. Step 6: Final answer
    x = 5,068.48

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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.