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Finding the Fourth Proportional to 6,506.71, 8,979.38 and 3,674.65

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Solution

The fourth proportional to 6,506.71, 8,979.38 and 3,674.65 is: 5,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506.71 : 8,979.38 = 3,674.65 : x
  2. Step 2: Convert to fraction form
    6,506.71/8,979.38 = 3,674.65/x
  3. Step 3: Cross multiply
    6,506.71x = 8,979.38 × 3,674.65
  4. Step 4: Simplify right side
    6,506.71x = 32,996,078.72
  5. Step 5: Solve for x
    x = 32,996,078.72/6,506.71
  6. Step 6: Final answer
    x = 5,071.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.