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Finding the Fourth Proportional to 3,755.64, 5,621.66 and 2,578.76

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Solution

The fourth proportional to 3,755.64, 5,621.66 and 2,578.76 is: 3,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.64 : 5,621.66 = 2,578.76 : x
  2. Step 2: Convert to fraction form
    3,755.64/5,621.66 = 2,578.76/x
  3. Step 3: Cross multiply
    3,755.64x = 5,621.66 × 2,578.76
  4. Step 4: Simplify right side
    3,755.64x = 14,496,911.94
  5. Step 5: Solve for x
    x = 14,496,911.94/3,755.64
  6. Step 6: Final answer
    x = 3,860.04

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1.5x scale

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.