Home / 6,479.80-9,719.59-2,318.68

Finding the Fourth Proportional to 6,479.80, 9,719.59 and 2,318.68

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Solution

The fourth proportional to 6,479.80, 9,719.59 and 2,318.68 is: 3,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.80 : 9,719.59 = 2,318.68 : x
  2. Step 2: Convert to fraction form
    6,479.80/9,719.59 = 2,318.68/x
  3. Step 3: Cross multiply
    6,479.80x = 9,719.59 × 2,318.68
  4. Step 4: Simplify right side
    6,479.80x = 22,536,618.94
  5. Step 5: Solve for x
    x = 22,536,618.94/6,479.80
  6. Step 6: Final answer
    x = 3,477.98

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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.