Home / 4,102.77-5,669.22-2,921.79

Finding the Fourth Proportional to 4,102.77, 5,669.22 and 2,921.79

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Solution

The fourth proportional to 4,102.77, 5,669.22 and 2,921.79 is: 4,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.77 : 5,669.22 = 2,921.79 : x
  2. Step 2: Convert to fraction form
    4,102.77/5,669.22 = 2,921.79/x
  3. Step 3: Cross multiply
    4,102.77x = 5,669.22 × 2,921.79
  4. Step 4: Simplify right side
    4,102.77x = 16,564,241.96
  5. Step 5: Solve for x
    x = 16,564,241.96/4,102.77
  6. Step 6: Final answer
    x = 4,037.34

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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.