Home / 3,679.02-5,076.88-2,187.10

Finding the Fourth Proportional to 3,679.02, 5,076.88 and 2,187.10

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Solution

The fourth proportional to 3,679.02, 5,076.88 and 2,187.10 is: 3,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.02 : 5,076.88 = 2,187.10 : x
  2. Step 2: Convert to fraction form
    3,679.02/5,076.88 = 2,187.10/x
  3. Step 3: Cross multiply
    3,679.02x = 5,076.88 × 2,187.10
  4. Step 4: Simplify right side
    3,679.02x = 11,103,645.13
  5. Step 5: Solve for x
    x = 11,103,645.13/3,679.02
  6. Step 6: Final answer
    x = 3,018.10

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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.