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Finding the Fourth Proportional to 3,772.03, 5,203.98 and 2,779.68

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Solution

The fourth proportional to 3,772.03, 5,203.98 and 2,779.68 is: 3,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.03 : 5,203.98 = 2,779.68 : x
  2. Step 2: Convert to fraction form
    3,772.03/5,203.98 = 2,779.68/x
  3. Step 3: Cross multiply
    3,772.03x = 5,203.98 × 2,779.68
  4. Step 4: Simplify right side
    3,772.03x = 14,465,375.69
  5. Step 5: Solve for x
    x = 14,465,375.69/3,772.03
  6. Step 6: Final answer
    x = 3,834.90

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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.