Home / 2,379.88-3,568.64-1,130.12

Finding the Fourth Proportional to 2,379.88, 3,568.64 and 1,130.12

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Solution

The fourth proportional to 2,379.88, 3,568.64 and 1,130.12 is: 1,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.88 : 3,568.64 = 1,130.12 : x
  2. Step 2: Convert to fraction form
    2,379.88/3,568.64 = 1,130.12/x
  3. Step 3: Cross multiply
    2,379.88x = 3,568.64 × 1,130.12
  4. Step 4: Simplify right side
    2,379.88x = 4,032,991.44
  5. Step 5: Solve for x
    x = 4,032,991.44/2,379.88
  6. Step 6: Final answer
    x = 1,694.62

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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.