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Finding the Fourth Proportional to 3,495.62, 5,245.53 and 1,415.90

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Solution

The fourth proportional to 3,495.62, 5,245.53 and 1,415.90 is: 2,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.62 : 5,245.53 = 1,415.90 : x
  2. Step 2: Convert to fraction form
    3,495.62/5,245.53 = 1,415.90/x
  3. Step 3: Cross multiply
    3,495.62x = 5,245.53 × 1,415.90
  4. Step 4: Simplify right side
    3,495.62x = 7,427,145.93
  5. Step 5: Solve for x
    x = 7,427,145.93/3,495.62
  6. Step 6: Final answer
    x = 2,124.70

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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.