Home / 5,542.38-7,649.32-3,390.16

Finding the Fourth Proportional to 5,542.38, 7,649.32 and 3,390.16

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Solution

The fourth proportional to 5,542.38, 7,649.32 and 3,390.16 is: 4,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,542.38 : 7,649.32 = 3,390.16 : x
  2. Step 2: Convert to fraction form
    5,542.38/7,649.32 = 3,390.16/x
  3. Step 3: Cross multiply
    5,542.38x = 7,649.32 × 3,390.16
  4. Step 4: Simplify right side
    5,542.38x = 25,932,418.69
  5. Step 5: Solve for x
    x = 25,932,418.69/5,542.38
  6. Step 6: Final answer
    x = 4,678.93

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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.