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Finding the Fourth Proportional to 6,999.91, 10,496.49 and 2,557.42

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Solution

The fourth proportional to 6,999.91, 10,496.49 and 2,557.42 is: 3,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.91 : 10,496.49 = 2,557.42 : x
  2. Step 2: Convert to fraction form
    6,999.91/10,496.49 = 2,557.42/x
  3. Step 3: Cross multiply
    6,999.91x = 10,496.49 × 2,557.42
  4. Step 4: Simplify right side
    6,999.91x = 26,843,933.46
  5. Step 5: Solve for x
    x = 26,843,933.46/6,999.91
  6. Step 6: Final answer
    x = 3,834.90

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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.