Home / 7,591.31-11,390.75-4,257.49

Finding the Fourth Proportional to 7,591.31, 11,390.75 and 4,257.49

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Solution

The fourth proportional to 7,591.31, 11,390.75 and 4,257.49 is: 6,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.31 : 11,390.75 = 4,257.49 : x
  2. Step 2: Convert to fraction form
    7,591.31/11,390.75 = 4,257.49/x
  3. Step 3: Cross multiply
    7,591.31x = 11,390.75 × 4,257.49
  4. Step 4: Simplify right side
    7,591.31x = 48,496,004.22
  5. Step 5: Solve for x
    x = 48,496,004.22/7,591.31
  6. Step 6: Final answer
    x = 6,388.36

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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.