Home / 4,309.96-6,464.28-1,387.96

Finding the Fourth Proportional to 4,309.96, 6,464.28 and 1,387.96

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Solution

The fourth proportional to 4,309.96, 6,464.28 and 1,387.96 is: 2,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.96 : 6,464.28 = 1,387.96 : x
  2. Step 2: Convert to fraction form
    4,309.96/6,464.28 = 1,387.96/x
  3. Step 3: Cross multiply
    4,309.96x = 6,464.28 × 1,387.96
  4. Step 4: Simplify right side
    4,309.96x = 8,972,162.07
  5. Step 5: Solve for x
    x = 8,972,162.07/4,309.96
  6. Step 6: Final answer
    x = 2,081.73

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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.