Home / 3,618.13-5,427.20-882.13

Finding the Fourth Proportional to 3,618.13, 5,427.20 and 882.13

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Solution

The fourth proportional to 3,618.13, 5,427.20 and 882.13 is: 1,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.13 : 5,427.20 = 882.13 : x
  2. Step 2: Convert to fraction form
    3,618.13/5,427.20 = 882.13/x
  3. Step 3: Cross multiply
    3,618.13x = 5,427.20 × 882.13
  4. Step 4: Simplify right side
    3,618.13x = 4,787,495.94
  5. Step 5: Solve for x
    x = 4,787,495.94/3,618.13
  6. Step 6: Final answer
    x = 1,323.20

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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.