Home / 3,906.08-5,385.36-2,508.32

Finding the Fourth Proportional to 3,906.08, 5,385.36 and 2,508.32

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Solution

The fourth proportional to 3,906.08, 5,385.36 and 2,508.32 is: 3,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.08 : 5,385.36 = 2,508.32 : x
  2. Step 2: Convert to fraction form
    3,906.08/5,385.36 = 2,508.32/x
  3. Step 3: Cross multiply
    3,906.08x = 5,385.36 × 2,508.32
  4. Step 4: Simplify right side
    3,906.08x = 13,508,206.20
  5. Step 5: Solve for x
    x = 13,508,206.20/3,906.08
  6. Step 6: Final answer
    x = 3,458.25

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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.