Home / 2,287.53-3,156.84-1,403.28

Finding the Fourth Proportional to 2,287.53, 3,156.84 and 1,403.28

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Solution

The fourth proportional to 2,287.53, 3,156.84 and 1,403.28 is: 1,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.53 : 3,156.84 = 1,403.28 : x
  2. Step 2: Convert to fraction form
    2,287.53/3,156.84 = 1,403.28/x
  3. Step 3: Cross multiply
    2,287.53x = 3,156.84 × 1,403.28
  4. Step 4: Simplify right side
    2,287.53x = 4,429,930.44
  5. Step 5: Solve for x
    x = 4,429,930.44/2,287.53
  6. Step 6: Final answer
    x = 1,936.56

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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.