Home / 3,977.91-5,487.75-2,650.32

Finding the Fourth Proportional to 3,977.91, 5,487.75 and 2,650.32

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Solution

The fourth proportional to 3,977.91, 5,487.75 and 2,650.32 is: 3,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.91 : 5,487.75 = 2,650.32 : x
  2. Step 2: Convert to fraction form
    3,977.91/5,487.75 = 2,650.32/x
  3. Step 3: Cross multiply
    3,977.91x = 5,487.75 × 2,650.32
  4. Step 4: Simplify right side
    3,977.91x = 14,544,293.58
  5. Step 5: Solve for x
    x = 14,544,293.58/3,977.91
  6. Step 6: Final answer
    x = 3,656.27

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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.