Home / 3,973.10-5,481.32-2,777.77

Finding the Fourth Proportional to 3,973.10, 5,481.32 and 2,777.77

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Solution

The fourth proportional to 3,973.10, 5,481.32 and 2,777.77 is: 3,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.10 : 5,481.32 = 2,777.77 : x
  2. Step 2: Convert to fraction form
    3,973.10/5,481.32 = 2,777.77/x
  3. Step 3: Cross multiply
    3,973.10x = 5,481.32 × 2,777.77
  4. Step 4: Simplify right side
    3,973.10x = 15,225,839.43
  5. Step 5: Solve for x
    x = 15,225,839.43/3,973.10
  6. Step 6: Final answer
    x = 3,832.23

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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.