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Finding the Fourth Proportional to 3,256.72, 4,494.36 and 1,930.72

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Solution

The fourth proportional to 3,256.72, 4,494.36 and 1,930.72 is: 2,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.72 : 4,494.36 = 1,930.72 : x
  2. Step 2: Convert to fraction form
    3,256.72/4,494.36 = 1,930.72/x
  3. Step 3: Cross multiply
    3,256.72x = 4,494.36 × 1,930.72
  4. Step 4: Simplify right side
    3,256.72x = 8,677,350.74
  5. Step 5: Solve for x
    x = 8,677,350.74/3,256.72
  6. Step 6: Final answer
    x = 2,664.44

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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.