Home / 2,380.16-3,568.13-918.30

Finding the Fourth Proportional to 2,380.16, 3,568.13 and 918.30

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Solution

The fourth proportional to 2,380.16, 3,568.13 and 918.30 is: 1,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.16 : 3,568.13 = 918.30 : x
  2. Step 2: Convert to fraction form
    2,380.16/3,568.13 = 918.30/x
  3. Step 3: Cross multiply
    2,380.16x = 3,568.13 × 918.30
  4. Step 4: Simplify right side
    2,380.16x = 3,276,609.19
  5. Step 5: Solve for x
    x = 3,276,609.19/2,380.16
  6. Step 6: Final answer
    x = 1,376.64

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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.