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Finding the Fourth Proportional to 6,620.52, 9,118.80 and 4,936.53

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Solution

The fourth proportional to 6,620.52, 9,118.80 and 4,936.53 is: 6,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.52 : 9,118.80 = 4,936.53 : x
  2. Step 2: Convert to fraction form
    6,620.52/9,118.80 = 4,936.53/x
  3. Step 3: Cross multiply
    6,620.52x = 9,118.80 × 4,936.53
  4. Step 4: Simplify right side
    6,620.52x = 45,015,229.76
  5. Step 5: Solve for x
    x = 45,015,229.76/6,620.52
  6. Step 6: Final answer
    x = 6,799.35

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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.