Home / 4,120.02-6,179.40-1,346.72

Finding the Fourth Proportional to 4,120.02, 6,179.40 and 1,346.72

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Solution

The fourth proportional to 4,120.02, 6,179.40 and 1,346.72 is: 2,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.02 : 6,179.40 = 1,346.72 : x
  2. Step 2: Convert to fraction form
    4,120.02/6,179.40 = 1,346.72/x
  3. Step 3: Cross multiply
    4,120.02x = 6,179.40 × 1,346.72
  4. Step 4: Simplify right side
    4,120.02x = 8,321,890.67
  5. Step 5: Solve for x
    x = 8,321,890.67/4,120.02
  6. Step 6: Final answer
    x = 2,019.87

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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.