Home / 4,447.20-6,670.80-2,719.20

Finding the Fourth Proportional to 4,447.20, 6,670.80 and 2,719.20

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Solution

The fourth proportional to 4,447.20, 6,670.80 and 2,719.20 is: 4,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,447.20 : 6,670.80 = 2,719.20 : x
  2. Step 2: Convert to fraction form
    4,447.20/6,670.80 = 2,719.20/x
  3. Step 3: Cross multiply
    4,447.20x = 6,670.80 × 2,719.20
  4. Step 4: Simplify right side
    4,447.20x = 18,139,239.36
  5. Step 5: Solve for x
    x = 18,139,239.36/4,447.20
  6. Step 6: Final answer
    x = 4,078.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.