Home / 3,649.72-5,037.11-2,158.51

Finding the Fourth Proportional to 3,649.72, 5,037.11 and 2,158.51

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Solution

The fourth proportional to 3,649.72, 5,037.11 and 2,158.51 is: 2,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.72 : 5,037.11 = 2,158.51 : x
  2. Step 2: Convert to fraction form
    3,649.72/5,037.11 = 2,158.51/x
  3. Step 3: Cross multiply
    3,649.72x = 5,037.11 × 2,158.51
  4. Step 4: Simplify right side
    3,649.72x = 10,872,652.31
  5. Step 5: Solve for x
    x = 10,872,652.31/3,649.72
  6. Step 6: Final answer
    x = 2,979.04

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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.