Home / 5,578.24-8,368.60-2,115.52

Finding the Fourth Proportional to 5,578.24, 8,368.60 and 2,115.52

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Solution

The fourth proportional to 5,578.24, 8,368.60 and 2,115.52 is: 3,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.24 : 8,368.60 = 2,115.52 : x
  2. Step 2: Convert to fraction form
    5,578.24/8,368.60 = 2,115.52/x
  3. Step 3: Cross multiply
    5,578.24x = 8,368.60 × 2,115.52
  4. Step 4: Simplify right side
    5,578.24x = 17,703,940.67
  5. Step 5: Solve for x
    x = 17,703,940.67/5,578.24
  6. Step 6: Final answer
    x = 3,173.75

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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.