Home / 6,319.05-9,479.69-2,158.09

Finding the Fourth Proportional to 6,319.05, 9,479.69 and 2,158.09

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Solution

The fourth proportional to 6,319.05, 9,479.69 and 2,158.09 is: 3,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.05 : 9,479.69 = 2,158.09 : x
  2. Step 2: Convert to fraction form
    6,319.05/9,479.69 = 2,158.09/x
  3. Step 3: Cross multiply
    6,319.05x = 9,479.69 × 2,158.09
  4. Step 4: Simplify right side
    6,319.05x = 20,457,996.60
  5. Step 5: Solve for x
    x = 20,457,996.60/6,319.05
  6. Step 6: Final answer
    x = 3,237.51

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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.