Home / 3,617.79-5,428.23-1,152.81

Finding the Fourth Proportional to 3,617.79, 5,428.23 and 1,152.81

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Solution

The fourth proportional to 3,617.79, 5,428.23 and 1,152.81 is: 1,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.79 : 5,428.23 = 1,152.81 : x
  2. Step 2: Convert to fraction form
    3,617.79/5,428.23 = 1,152.81/x
  3. Step 3: Cross multiply
    3,617.79x = 5,428.23 × 1,152.81
  4. Step 4: Simplify right side
    3,617.79x = 6,257,717.83
  5. Step 5: Solve for x
    x = 6,257,717.83/3,617.79
  6. Step 6: Final answer
    x = 1,729.71

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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.