Home / 2,926.16-4,389.60-979.04

Finding the Fourth Proportional to 2,926.16, 4,389.60 and 979.04

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Solution

The fourth proportional to 2,926.16, 4,389.60 and 979.04 is: 1,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.16 : 4,389.60 = 979.04 : x
  2. Step 2: Convert to fraction form
    2,926.16/4,389.60 = 979.04/x
  3. Step 3: Cross multiply
    2,926.16x = 4,389.60 × 979.04
  4. Step 4: Simplify right side
    2,926.16x = 4,297,593.98
  5. Step 5: Solve for x
    x = 4,297,593.98/2,926.16
  6. Step 6: Final answer
    x = 1,468.68

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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.