Home / 7,079.08-10,619.91-2,916.78

Finding the Fourth Proportional to 7,079.08, 10,619.91 and 2,916.78

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Solution

The fourth proportional to 7,079.08, 10,619.91 and 2,916.78 is: 4,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.08 : 10,619.91 = 2,916.78 : x
  2. Step 2: Convert to fraction form
    7,079.08/10,619.91 = 2,916.78/x
  3. Step 3: Cross multiply
    7,079.08x = 10,619.91 × 2,916.78
  4. Step 4: Simplify right side
    7,079.08x = 30,975,888.96
  5. Step 5: Solve for x
    x = 30,975,888.96/7,079.08
  6. Step 6: Final answer
    x = 4,375.69

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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.