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Finding the Fourth Proportional to 4,947.89, 6,863.04 and 4,770.59

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Solution

The fourth proportional to 4,947.89, 6,863.04 and 4,770.59 is: 6,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.89 : 6,863.04 = 4,770.59 : x
  2. Step 2: Convert to fraction form
    4,947.89/6,863.04 = 4,770.59/x
  3. Step 3: Cross multiply
    4,947.89x = 6,863.04 × 4,770.59
  4. Step 4: Simplify right side
    4,947.89x = 32,740,715.68
  5. Step 5: Solve for x
    x = 32,740,715.68/4,947.89
  6. Step 6: Final answer
    x = 6,617.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.