Home / 3,258.07-4,887.39-918.09

Finding the Fourth Proportional to 3,258.07, 4,887.39 and 918.09

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Solution

The fourth proportional to 3,258.07, 4,887.39 and 918.09 is: 1,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.07 : 4,887.39 = 918.09 : x
  2. Step 2: Convert to fraction form
    3,258.07/4,887.39 = 918.09/x
  3. Step 3: Cross multiply
    3,258.07x = 4,887.39 × 918.09
  4. Step 4: Simplify right side
    3,258.07x = 4,487,061.59
  5. Step 5: Solve for x
    x = 4,487,061.59/3,258.07
  6. Step 6: Final answer
    x = 1,377.22

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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.