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Finding the Fourth Proportional to 7,737.90, 11,608.81 and 3,580.90

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Solution

The fourth proportional to 7,737.90, 11,608.81 and 3,580.90 is: 5,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,737.90 : 11,608.81 = 3,580.90 : x
  2. Step 2: Convert to fraction form
    7,737.90/11,608.81 = 3,580.90/x
  3. Step 3: Cross multiply
    7,737.90x = 11,608.81 × 3,580.90
  4. Step 4: Simplify right side
    7,737.90x = 41,569,949.75
  5. Step 5: Solve for x
    x = 41,569,949.75/7,737.90
  6. Step 6: Final answer
    x = 5,372.25

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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.