Home / 6,898.25-10,349.42-3,978.65

Finding the Fourth Proportional to 6,898.25, 10,349.42 and 3,978.65

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Solution

The fourth proportional to 6,898.25, 10,349.42 and 3,978.65 is: 5,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.25 : 10,349.42 = 3,978.65 : x
  2. Step 2: Convert to fraction form
    6,898.25/10,349.42 = 3,978.65/x
  3. Step 3: Cross multiply
    6,898.25x = 10,349.42 × 3,978.65
  4. Step 4: Simplify right side
    6,898.25x = 41,176,719.88
  5. Step 5: Solve for x
    x = 41,176,719.88/6,898.25
  6. Step 6: Final answer
    x = 5,969.15

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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.