Home / 3,618.20-5,428.07-1,153.23

Finding the Fourth Proportional to 3,618.20, 5,428.07 and 1,153.23

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Solution

The fourth proportional to 3,618.20, 5,428.07 and 1,153.23 is: 1,730.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.20 : 5,428.07 = 1,153.23 : x
  2. Step 2: Convert to fraction form
    3,618.20/5,428.07 = 1,153.23/x
  3. Step 3: Cross multiply
    3,618.20x = 5,428.07 × 1,153.23
  4. Step 4: Simplify right side
    3,618.20x = 6,259,791.37
  5. Step 5: Solve for x
    x = 6,259,791.37/3,618.20
  6. Step 6: Final answer
    x = 1,730.08

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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.