Home / 5,452.80-8,217.60-5,107.20

Finding the Fourth Proportional to 5,452.80, 8,217.60 and 5,107.20

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Solution

The fourth proportional to 5,452.80, 8,217.60 and 5,107.20 is: 7,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.80 : 8,217.60 = 5,107.20 : x
  2. Step 2: Convert to fraction form
    5,452.80/8,217.60 = 5,107.20/x
  3. Step 3: Cross multiply
    5,452.80x = 8,217.60 × 5,107.20
  4. Step 4: Simplify right side
    5,452.80x = 41,968,926.72
  5. Step 5: Solve for x
    x = 41,968,926.72/5,452.80
  6. Step 6: Final answer
    x = 7,696.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.