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Finding the Fourth Proportional to 3,617.52, 4,995.72 and 3,090.48

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Solution

The fourth proportional to 3,617.52, 4,995.72 and 3,090.48 is: 4,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.52 : 4,995.72 = 3,090.48 : x
  2. Step 2: Convert to fraction form
    3,617.52/4,995.72 = 3,090.48/x
  3. Step 3: Cross multiply
    3,617.52x = 4,995.72 × 3,090.48
  4. Step 4: Simplify right side
    3,617.52x = 15,439,172.75
  5. Step 5: Solve for x
    x = 15,439,172.75/3,617.52
  6. Step 6: Final answer
    x = 4,267.89

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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.