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Finding the Fourth Proportional to 4,155.60, 6,215.04 and 3,696.60

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Solution

The fourth proportional to 4,155.60, 6,215.04 and 3,696.60 is: 5,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.60 : 6,215.04 = 3,696.60 : x
  2. Step 2: Convert to fraction form
    4,155.60/6,215.04 = 3,696.60/x
  3. Step 3: Cross multiply
    4,155.60x = 6,215.04 × 3,696.60
  4. Step 4: Simplify right side
    4,155.60x = 22,974,516.86
  5. Step 5: Solve for x
    x = 22,974,516.86/4,155.60
  6. Step 6: Final answer
    x = 5,528.57

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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.