Home / 4,945.32-6,822.63-3,177.90

Finding the Fourth Proportional to 4,945.32, 6,822.63 and 3,177.90

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Solution

The fourth proportional to 4,945.32, 6,822.63 and 3,177.90 is: 4,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.32 : 6,822.63 = 3,177.90 : x
  2. Step 2: Convert to fraction form
    4,945.32/6,822.63 = 3,177.90/x
  3. Step 3: Cross multiply
    4,945.32x = 6,822.63 × 3,177.90
  4. Step 4: Simplify right side
    4,945.32x = 21,681,635.88
  5. Step 5: Solve for x
    x = 21,681,635.88/4,945.32
  6. Step 6: Final answer
    x = 4,384.27

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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.