Home / 7,745.22-10,688.42-4,208.42

Finding the Fourth Proportional to 7,745.22, 10,688.42 and 4,208.42

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Solution

The fourth proportional to 7,745.22, 10,688.42 and 4,208.42 is: 5,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.22 : 10,688.42 = 4,208.42 : x
  2. Step 2: Convert to fraction form
    7,745.22/10,688.42 = 4,208.42/x
  3. Step 3: Cross multiply
    7,745.22x = 10,688.42 × 4,208.42
  4. Step 4: Simplify right side
    7,745.22x = 44,981,360.50
  5. Step 5: Solve for x
    x = 44,981,360.50/7,745.22
  6. Step 6: Final answer
    x = 5,807.63

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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.