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Finding the Fourth Proportional to 6,990, 10,482.76 and 2,308.92

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Solution

The fourth proportional to 6,990, 10,482.76 and 2,308.92 is: 3,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990 : 10,482.76 = 2,308.92 : x
  2. Step 2: Convert to fraction form
    6,990/10,482.76 = 2,308.92/x
  3. Step 3: Cross multiply
    6,990x = 10,482.76 × 2,308.92
  4. Step 4: Simplify right side
    6,990x = 24,203,854.22
  5. Step 5: Solve for x
    x = 24,203,854.22/6,990
  6. Step 6: Final answer
    x = 3,462.64

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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.