Home / 3,679.32-5,077.04-2,187.30

Finding the Fourth Proportional to 3,679.32, 5,077.04 and 2,187.30

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Solution

The fourth proportional to 3,679.32, 5,077.04 and 2,187.30 is: 3,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.32 : 5,077.04 = 2,187.30 : x
  2. Step 2: Convert to fraction form
    3,679.32/5,077.04 = 2,187.30/x
  3. Step 3: Cross multiply
    3,679.32x = 5,077.04 × 2,187.30
  4. Step 4: Simplify right side
    3,679.32x = 11,104,998.66
  5. Step 5: Solve for x
    x = 11,104,998.66/3,679.32
  6. Step 6: Final answer
    x = 3,018.22

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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.