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Finding the Fourth Proportional to 6,886.65, 10,324.17 and 2,988.12

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Solution

The fourth proportional to 6,886.65, 10,324.17 and 2,988.12 is: 4,479.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.65 : 10,324.17 = 2,988.12 : x
  2. Step 2: Convert to fraction form
    6,886.65/10,324.17 = 2,988.12/x
  3. Step 3: Cross multiply
    6,886.65x = 10,324.17 × 2,988.12
  4. Step 4: Simplify right side
    6,886.65x = 30,849,858.86
  5. Step 5: Solve for x
    x = 30,849,858.86/6,886.65
  6. Step 6: Final answer
    x = 4,479.66

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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.