Home / 5,519.25-7,619.39-4,257.47

Finding the Fourth Proportional to 5,519.25, 7,619.39 and 4,257.47

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Solution

The fourth proportional to 5,519.25, 7,619.39 and 4,257.47 is: 5,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.25 : 7,619.39 = 4,257.47 : x
  2. Step 2: Convert to fraction form
    5,519.25/7,619.39 = 4,257.47/x
  3. Step 3: Cross multiply
    5,519.25x = 7,619.39 × 4,257.47
  4. Step 4: Simplify right side
    5,519.25x = 32,439,342.27
  5. Step 5: Solve for x
    x = 32,439,342.27/5,519.25
  6. Step 6: Final answer
    x = 5,877.49

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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.