Home / 3,618.52-5,428.72-1,153.35

Finding the Fourth Proportional to 3,618.52, 5,428.72 and 1,153.35

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Solution

The fourth proportional to 3,618.52, 5,428.72 and 1,153.35 is: 1,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.52 : 5,428.72 = 1,153.35 : x
  2. Step 2: Convert to fraction form
    3,618.52/5,428.72 = 1,153.35/x
  3. Step 3: Cross multiply
    3,618.52x = 5,428.72 × 1,153.35
  4. Step 4: Simplify right side
    3,618.52x = 6,261,215.65
  5. Step 5: Solve for x
    x = 6,261,215.65/3,618.52
  6. Step 6: Final answer
    x = 1,730.33

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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.