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Finding the Fourth Proportional to 7,555.71, 11,333.52 and 2,938.71

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Solution

The fourth proportional to 7,555.71, 11,333.52 and 2,938.71 is: 4,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.71 : 11,333.52 = 2,938.71 : x
  2. Step 2: Convert to fraction form
    7,555.71/11,333.52 = 2,938.71/x
  3. Step 3: Cross multiply
    7,555.71x = 11,333.52 × 2,938.71
  4. Step 4: Simplify right side
    7,555.71x = 33,305,928.56
  5. Step 5: Solve for x
    x = 33,305,928.56/7,555.71
  6. Step 6: Final answer
    x = 4,408.05

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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.