Home / 6,338.86-9,508.38-2,178.70

Finding the Fourth Proportional to 6,338.86, 9,508.38 and 2,178.70

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Solution

The fourth proportional to 6,338.86, 9,508.38 and 2,178.70 is: 3,268.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.86 : 9,508.38 = 2,178.70 : x
  2. Step 2: Convert to fraction form
    6,338.86/9,508.38 = 2,178.70/x
  3. Step 3: Cross multiply
    6,338.86x = 9,508.38 × 2,178.70
  4. Step 4: Simplify right side
    6,338.86x = 20,715,907.51
  5. Step 5: Solve for x
    x = 20,715,907.51/6,338.86
  6. Step 6: Final answer
    x = 3,268.08

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1.5x scale

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.