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Finding the Fourth Proportional to 3,664.32, 5,497.12 and 1,910.16

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Solution

The fourth proportional to 3,664.32, 5,497.12 and 1,910.16 is: 2,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.32 : 5,497.12 = 1,910.16 : x
  2. Step 2: Convert to fraction form
    3,664.32/5,497.12 = 1,910.16/x
  3. Step 3: Cross multiply
    3,664.32x = 5,497.12 × 1,910.16
  4. Step 4: Simplify right side
    3,664.32x = 10,500,378.74
  5. Step 5: Solve for x
    x = 10,500,378.74/3,664.32
  6. Step 6: Final answer
    x = 2,865.57

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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.