Home / 3,618.53-5,428.19-1,152.77

Finding the Fourth Proportional to 3,618.53, 5,428.19 and 1,152.77

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Solution

The fourth proportional to 3,618.53, 5,428.19 and 1,152.77 is: 1,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.53 : 5,428.19 = 1,152.77 : x
  2. Step 2: Convert to fraction form
    3,618.53/5,428.19 = 1,152.77/x
  3. Step 3: Cross multiply
    3,618.53x = 5,428.19 × 1,152.77
  4. Step 4: Simplify right side
    3,618.53x = 6,257,454.59
  5. Step 5: Solve for x
    x = 6,257,454.59/3,618.53
  6. Step 6: Final answer
    x = 1,729.28

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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.