Home / 7,745.19-10,688.46-4,208.43

Finding the Fourth Proportional to 7,745.19, 10,688.46 and 4,208.43

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Solution

The fourth proportional to 7,745.19, 10,688.46 and 4,208.43 is: 5,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.19 : 10,688.46 = 4,208.43 : x
  2. Step 2: Convert to fraction form
    7,745.19/10,688.46 = 4,208.43/x
  3. Step 3: Cross multiply
    7,745.19x = 10,688.46 × 4,208.43
  4. Step 4: Simplify right side
    7,745.19x = 44,981,635.72
  5. Step 5: Solve for x
    x = 44,981,635.72/7,745.19
  6. Step 6: Final answer
    x = 5,807.69

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Double scale
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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.