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Finding the Fourth Proportional to 6,947.78, 9,587.93 and 3,803.94

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Solution

The fourth proportional to 6,947.78, 9,587.93 and 3,803.94 is: 5,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.78 : 9,587.93 = 3,803.94 : x
  2. Step 2: Convert to fraction form
    6,947.78/9,587.93 = 3,803.94/x
  3. Step 3: Cross multiply
    6,947.78x = 9,587.93 × 3,803.94
  4. Step 4: Simplify right side
    6,947.78x = 36,471,891.42
  5. Step 5: Solve for x
    x = 36,471,891.42/6,947.78
  6. Step 6: Final answer
    x = 5,249.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.