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Finding the Fourth Proportional to 6,886.08, 10,338.84 and 3,970.08

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Solution

The fourth proportional to 6,886.08, 10,338.84 and 3,970.08 is: 5,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.08 : 10,338.84 = 3,970.08 : x
  2. Step 2: Convert to fraction form
    6,886.08/10,338.84 = 3,970.08/x
  3. Step 3: Cross multiply
    6,886.08x = 10,338.84 × 3,970.08
  4. Step 4: Simplify right side
    6,886.08x = 41,046,021.91
  5. Step 5: Solve for x
    x = 41,046,021.91/6,886.08
  6. Step 6: Final answer
    x = 5,960.72

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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.