Home / 2,287.87-3,157.23-1,293.11

Finding the Fourth Proportional to 2,287.87, 3,157.23 and 1,293.11

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Solution

The fourth proportional to 2,287.87, 3,157.23 and 1,293.11 is: 1,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.87 : 3,157.23 = 1,293.11 : x
  2. Step 2: Convert to fraction form
    2,287.87/3,157.23 = 1,293.11/x
  3. Step 3: Cross multiply
    2,287.87x = 3,157.23 × 1,293.11
  4. Step 4: Simplify right side
    2,287.87x = 4,082,657.07
  5. Step 5: Solve for x
    x = 4,082,657.07/2,287.87
  6. Step 6: Final answer
    x = 1,784.48

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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.