Home / 2,287.14-3,156.03-1,292.28

Finding the Fourth Proportional to 2,287.14, 3,156.03 and 1,292.28

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Solution

The fourth proportional to 2,287.14, 3,156.03 and 1,292.28 is: 1,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.14 : 3,156.03 = 1,292.28 : x
  2. Step 2: Convert to fraction form
    2,287.14/3,156.03 = 1,292.28/x
  3. Step 3: Cross multiply
    2,287.14x = 3,156.03 × 1,292.28
  4. Step 4: Simplify right side
    2,287.14x = 4,078,474.45
  5. Step 5: Solve for x
    x = 4,078,474.45/2,287.14
  6. Step 6: Final answer
    x = 1,783.22

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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.