Home / 3,618.39-5,427.63-1,153.20

Finding the Fourth Proportional to 3,618.39, 5,427.63 and 1,153.20

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Solution

The fourth proportional to 3,618.39, 5,427.63 and 1,153.20 is: 1,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.39 : 5,427.63 = 1,153.20 : x
  2. Step 2: Convert to fraction form
    3,618.39/5,427.63 = 1,153.20/x
  3. Step 3: Cross multiply
    3,618.39x = 5,427.63 × 1,153.20
  4. Step 4: Simplify right side
    3,618.39x = 6,259,142.92
  5. Step 5: Solve for x
    x = 6,259,142.92/3,618.39
  6. Step 6: Final answer
    x = 1,729.81

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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.