Home / 4,978.12-6,872.64-3,301.80

Finding the Fourth Proportional to 4,978.12, 6,872.64 and 3,301.80

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Solution

The fourth proportional to 4,978.12, 6,872.64 and 3,301.80 is: 4,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978.12 : 6,872.64 = 3,301.80 : x
  2. Step 2: Convert to fraction form
    4,978.12/6,872.64 = 3,301.80/x
  3. Step 3: Cross multiply
    4,978.12x = 6,872.64 × 3,301.80
  4. Step 4: Simplify right side
    4,978.12x = 22,692,082.75
  5. Step 5: Solve for x
    x = 22,692,082.75/4,978.12
  6. Step 6: Final answer
    x = 4,558.36

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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.