Home / 2,287.99-3,157.49-1,379.75

Finding the Fourth Proportional to 2,287.99, 3,157.49 and 1,379.75

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Solution

The fourth proportional to 2,287.99, 3,157.49 and 1,379.75 is: 1,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.99 : 3,157.49 = 1,379.75 : x
  2. Step 2: Convert to fraction form
    2,287.99/3,157.49 = 1,379.75/x
  3. Step 3: Cross multiply
    2,287.99x = 3,157.49 × 1,379.75
  4. Step 4: Simplify right side
    2,287.99x = 4,356,558.17
  5. Step 5: Solve for x
    x = 4,356,558.17/2,287.99
  6. Step 6: Final answer
    x = 1,904.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.