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Finding the Fourth Proportional to 3,370.64, 4,651.64 and 1,878.56

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Solution

The fourth proportional to 3,370.64, 4,651.64 and 1,878.56 is: 2,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.64 : 4,651.64 = 1,878.56 : x
  2. Step 2: Convert to fraction form
    3,370.64/4,651.64 = 1,878.56/x
  3. Step 3: Cross multiply
    3,370.64x = 4,651.64 × 1,878.56
  4. Step 4: Simplify right side
    3,370.64x = 8,738,392.00
  5. Step 5: Solve for x
    x = 8,738,392.00/3,370.64
  6. Step 6: Final answer
    x = 2,592.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.