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Finding the Fourth Proportional to 6,938.95, 10,404.10 and 2,992.69

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Solution

The fourth proportional to 6,938.95, 10,404.10 and 2,992.69 is: 4,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.95 : 10,404.10 = 2,992.69 : x
  2. Step 2: Convert to fraction form
    6,938.95/10,404.10 = 2,992.69/x
  3. Step 3: Cross multiply
    6,938.95x = 10,404.10 × 2,992.69
  4. Step 4: Simplify right side
    6,938.95x = 31,136,246.03
  5. Step 5: Solve for x
    x = 31,136,246.03/6,938.95
  6. Step 6: Final answer
    x = 4,487.17

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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.