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Finding the Fourth Proportional to 4,900.91, 7,336.78 and 2,947.19

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Solution

The fourth proportional to 4,900.91, 7,336.78 and 2,947.19 is: 4,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.91 : 7,336.78 = 2,947.19 : x
  2. Step 2: Convert to fraction form
    4,900.91/7,336.78 = 2,947.19/x
  3. Step 3: Cross multiply
    4,900.91x = 7,336.78 × 2,947.19
  4. Step 4: Simplify right side
    4,900.91x = 21,622,840.60
  5. Step 5: Solve for x
    x = 21,622,840.60/4,900.91
  6. Step 6: Final answer
    x = 4,412.01

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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.