Home / 2,379.08-3,568.21-918.25

Finding the Fourth Proportional to 2,379.08, 3,568.21 and 918.25

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Solution

The fourth proportional to 2,379.08, 3,568.21 and 918.25 is: 1,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.08 : 3,568.21 = 918.25 : x
  2. Step 2: Convert to fraction form
    2,379.08/3,568.21 = 918.25/x
  3. Step 3: Cross multiply
    2,379.08x = 3,568.21 × 918.25
  4. Step 4: Simplify right side
    2,379.08x = 3,276,497.62
  5. Step 5: Solve for x
    x = 3,276,497.62/2,379.08
  6. Step 6: Final answer
    x = 1,377.21

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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.