Home / 3,659.50-5,490.47-1,161.09

Finding the Fourth Proportional to 3,659.50, 5,490.47 and 1,161.09

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Solution

The fourth proportional to 3,659.50, 5,490.47 and 1,161.09 is: 1,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.50 : 5,490.47 = 1,161.09 : x
  2. Step 2: Convert to fraction form
    3,659.50/5,490.47 = 1,161.09/x
  3. Step 3: Cross multiply
    3,659.50x = 5,490.47 × 1,161.09
  4. Step 4: Simplify right side
    3,659.50x = 6,374,932.72
  5. Step 5: Solve for x
    x = 6,374,932.72/3,659.50
  6. Step 6: Final answer
    x = 1,742.02

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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.