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Finding the Fourth Proportional to 6,888.87, 10,328.86 and 2,942.70

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Solution

The fourth proportional to 6,888.87, 10,328.86 and 2,942.70 is: 4,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.87 : 10,328.86 = 2,942.70 : x
  2. Step 2: Convert to fraction form
    6,888.87/10,328.86 = 2,942.70/x
  3. Step 3: Cross multiply
    6,888.87x = 10,328.86 × 2,942.70
  4. Step 4: Simplify right side
    6,888.87x = 30,394,721.61
  5. Step 5: Solve for x
    x = 30,394,721.61/6,888.87
  6. Step 6: Final answer
    x = 4,412.15

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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.