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Finding the Fourth Proportional to 3,610.10, 5,415.80 and 1,662.50

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Solution

The fourth proportional to 3,610.10, 5,415.80 and 1,662.50 is: 2,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.10 : 5,415.80 = 1,662.50 : x
  2. Step 2: Convert to fraction form
    3,610.10/5,415.80 = 1,662.50/x
  3. Step 3: Cross multiply
    3,610.10x = 5,415.80 × 1,662.50
  4. Step 4: Simplify right side
    3,610.10x = 9,003,767.50
  5. Step 5: Solve for x
    x = 9,003,767.50/3,610.10
  6. Step 6: Final answer
    x = 2,494.05

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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.