Home / 5,399.74-7,454.87-3,906.10

Finding the Fourth Proportional to 5,399.74, 7,454.87 and 3,906.10

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Solution

The fourth proportional to 5,399.74, 7,454.87 and 3,906.10 is: 5,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.74 : 7,454.87 = 3,906.10 : x
  2. Step 2: Convert to fraction form
    5,399.74/7,454.87 = 3,906.10/x
  3. Step 3: Cross multiply
    5,399.74x = 7,454.87 × 3,906.10
  4. Step 4: Simplify right side
    5,399.74x = 29,119,467.71
  5. Step 5: Solve for x
    x = 29,119,467.71/5,399.74
  6. Step 6: Final answer
    x = 5,392.75

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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.