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Finding the Fourth Proportional to 7,415.32, 11,118.90 and 3,035.86

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Solution

The fourth proportional to 7,415.32, 11,118.90 and 3,035.86 is: 4,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.32 : 11,118.90 = 3,035.86 : x
  2. Step 2: Convert to fraction form
    7,415.32/11,118.90 = 3,035.86/x
  3. Step 3: Cross multiply
    7,415.32x = 11,118.90 × 3,035.86
  4. Step 4: Simplify right side
    7,415.32x = 33,755,423.75
  5. Step 5: Solve for x
    x = 33,755,423.75/7,415.32
  6. Step 6: Final answer
    x = 4,552.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.