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Finding the Fourth Proportional to 4,985.72, 7,481.05 and 3,666.22

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Solution

The fourth proportional to 4,985.72, 7,481.05 and 3,666.22 is: 5,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.72 : 7,481.05 = 3,666.22 : x
  2. Step 2: Convert to fraction form
    4,985.72/7,481.05 = 3,666.22/x
  3. Step 3: Cross multiply
    4,985.72x = 7,481.05 × 3,666.22
  4. Step 4: Simplify right side
    4,985.72x = 27,427,175.13
  5. Step 5: Solve for x
    x = 27,427,175.13/4,985.72
  6. Step 6: Final answer
    x = 5,501.15

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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.