Home / 6,339.41-9,509.75-2,178.87

Finding the Fourth Proportional to 6,339.41, 9,509.75 and 2,178.87

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Solution

The fourth proportional to 6,339.41, 9,509.75 and 2,178.87 is: 3,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.41 : 9,509.75 = 2,178.87 : x
  2. Step 2: Convert to fraction form
    6,339.41/9,509.75 = 2,178.87/x
  3. Step 3: Cross multiply
    6,339.41x = 9,509.75 × 2,178.87
  4. Step 4: Simplify right side
    6,339.41x = 20,720,508.98
  5. Step 5: Solve for x
    x = 20,720,508.98/6,339.41
  6. Step 6: Final answer
    x = 3,268.52

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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.