Home / 3,649.06-5,037.02-2,158.26

Finding the Fourth Proportional to 3,649.06, 5,037.02 and 2,158.26

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Solution

The fourth proportional to 3,649.06, 5,037.02 and 2,158.26 is: 2,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.06 : 5,037.02 = 2,158.26 : x
  2. Step 2: Convert to fraction form
    3,649.06/5,037.02 = 2,158.26/x
  3. Step 3: Cross multiply
    3,649.06x = 5,037.02 × 2,158.26
  4. Step 4: Simplify right side
    3,649.06x = 10,871,198.79
  5. Step 5: Solve for x
    x = 10,871,198.79/3,649.06
  6. Step 6: Final answer
    x = 2,979.18

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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.