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Finding the Fourth Proportional to 3,607.86, 5,410.86 and 1,416.60

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Solution

The fourth proportional to 3,607.86, 5,410.86 and 1,416.60 is: 2,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.86 : 5,410.86 = 1,416.60 : x
  2. Step 2: Convert to fraction form
    3,607.86/5,410.86 = 1,416.60/x
  3. Step 3: Cross multiply
    3,607.86x = 5,410.86 × 1,416.60
  4. Step 4: Simplify right side
    3,607.86x = 7,665,024.28
  5. Step 5: Solve for x
    x = 7,665,024.28/3,607.86
  6. Step 6: Final answer
    x = 2,124.53

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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.