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Finding the Fourth Proportional to 3,720.02, 5,585.70 and 3,175.70

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Solution

The fourth proportional to 3,720.02, 5,585.70 and 3,175.70 is: 4,768.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.02 : 5,585.70 = 3,175.70 : x
  2. Step 2: Convert to fraction form
    3,720.02/5,585.70 = 3,175.70/x
  3. Step 3: Cross multiply
    3,720.02x = 5,585.70 × 3,175.70
  4. Step 4: Simplify right side
    3,720.02x = 17,738,507.49
  5. Step 5: Solve for x
    x = 17,738,507.49/3,720.02
  6. Step 6: Final answer
    x = 4,768.39

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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.