Home / 5,452.79-8,109.72-5,394.47

Finding the Fourth Proportional to 5,452.79, 8,109.72 and 5,394.47

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Solution

The fourth proportional to 5,452.79, 8,109.72 and 5,394.47 is: 8,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.79 : 8,109.72 = 5,394.47 : x
  2. Step 2: Convert to fraction form
    5,452.79/8,109.72 = 5,394.47/x
  3. Step 3: Cross multiply
    5,452.79x = 8,109.72 × 5,394.47
  4. Step 4: Simplify right side
    5,452.79x = 43,747,600.70
  5. Step 5: Solve for x
    x = 43,747,600.70/5,452.79
  6. Step 6: Final answer
    x = 8,022.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.