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Finding the Fourth Proportional to 6,866.72, 10,290.96 and 3,578.93

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Solution

The fourth proportional to 6,866.72, 10,290.96 and 3,578.93 is: 5,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.72 : 10,290.96 = 3,578.93 : x
  2. Step 2: Convert to fraction form
    6,866.72/10,290.96 = 3,578.93/x
  3. Step 3: Cross multiply
    6,866.72x = 10,290.96 × 3,578.93
  4. Step 4: Simplify right side
    6,866.72x = 36,830,556.12
  5. Step 5: Solve for x
    x = 36,830,556.12/6,866.72
  6. Step 6: Final answer
    x = 5,363.64

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1.5x scale

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.