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Finding the Fourth Proportional to 3,758.76, 5,638.14 and 2,935.80

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Solution

The fourth proportional to 3,758.76, 5,638.14 and 2,935.80 is: 4,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.76 : 5,638.14 = 2,935.80 : x
  2. Step 2: Convert to fraction form
    3,758.76/5,638.14 = 2,935.80/x
  3. Step 3: Cross multiply
    3,758.76x = 5,638.14 × 2,935.80
  4. Step 4: Simplify right side
    3,758.76x = 16,552,451.41
  5. Step 5: Solve for x
    x = 16,552,451.41/3,758.76
  6. Step 6: Final answer
    x = 4,403.70

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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.