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Finding the Fourth Proportional to 6,622.44, 9,136.61 and 3,787.77

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Solution

The fourth proportional to 6,622.44, 9,136.61 and 3,787.77 is: 5,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.44 : 9,136.61 = 3,787.77 : x
  2. Step 2: Convert to fraction form
    6,622.44/9,136.61 = 3,787.77/x
  3. Step 3: Cross multiply
    6,622.44x = 9,136.61 × 3,787.77
  4. Step 4: Simplify right side
    6,622.44x = 34,607,358.32
  5. Step 5: Solve for x
    x = 34,607,358.32/6,622.44
  6. Step 6: Final answer
    x = 5,225.77

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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.