Home / 7,745.25-10,688.48-4,208.47

Finding the Fourth Proportional to 7,745.25, 10,688.48 and 4,208.47

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Solution

The fourth proportional to 7,745.25, 10,688.48 and 4,208.47 is: 5,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.25 : 10,688.48 = 4,208.47 : x
  2. Step 2: Convert to fraction form
    7,745.25/10,688.48 = 4,208.47/x
  3. Step 3: Cross multiply
    7,745.25x = 10,688.48 × 4,208.47
  4. Step 4: Simplify right side
    7,745.25x = 44,982,147.43
  5. Step 5: Solve for x
    x = 44,982,147.43/7,745.25
  6. Step 6: Final answer
    x = 5,807.71

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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.