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Finding the Fourth Proportional to 6,985.92, 10,481.05 and 2,421.93

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Solution

The fourth proportional to 6,985.92, 10,481.05 and 2,421.93 is: 3,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.92 : 10,481.05 = 2,421.93 : x
  2. Step 2: Convert to fraction form
    6,985.92/10,481.05 = 2,421.93/x
  3. Step 3: Cross multiply
    6,985.92x = 10,481.05 × 2,421.93
  4. Step 4: Simplify right side
    6,985.92x = 25,384,363.37
  5. Step 5: Solve for x
    x = 25,384,363.37/6,985.92
  6. Step 6: Final answer
    x = 3,633.65

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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.