Home / 3,670.21-5,063.25-2,178.19

Finding the Fourth Proportional to 3,670.21, 5,063.25 and 2,178.19

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Solution

The fourth proportional to 3,670.21, 5,063.25 and 2,178.19 is: 3,004.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.21 : 5,063.25 = 2,178.19 : x
  2. Step 2: Convert to fraction form
    3,670.21/5,063.25 = 2,178.19/x
  3. Step 3: Cross multiply
    3,670.21x = 5,063.25 × 2,178.19
  4. Step 4: Simplify right side
    3,670.21x = 11,028,720.52
  5. Step 5: Solve for x
    x = 11,028,720.52/3,670.21
  6. Step 6: Final answer
    x = 3,004.93

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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.