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Finding the Fourth Proportional to 5,425.94, 7,489.14 and 3,069.47

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Solution

The fourth proportional to 5,425.94, 7,489.14 and 3,069.47 is: 4,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.94 : 7,489.14 = 3,069.47 : x
  2. Step 2: Convert to fraction form
    5,425.94/7,489.14 = 3,069.47/x
  3. Step 3: Cross multiply
    5,425.94x = 7,489.14 × 3,069.47
  4. Step 4: Simplify right side
    5,425.94x = 22,987,690.56
  5. Step 5: Solve for x
    x = 22,987,690.56/5,425.94
  6. Step 6: Final answer
    x = 4,236.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.