Home / 1,551.28-2,327.60-1,143.80

Finding the Fourth Proportional to 1,551.28, 2,327.60 and 1,143.80

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Solution

The fourth proportional to 1,551.28, 2,327.60 and 1,143.80 is: 1,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.28 : 2,327.60 = 1,143.80 : x
  2. Step 2: Convert to fraction form
    1,551.28/2,327.60 = 1,143.80/x
  3. Step 3: Cross multiply
    1,551.28x = 2,327.60 × 1,143.80
  4. Step 4: Simplify right side
    1,551.28x = 2,662,308.88
  5. Step 5: Solve for x
    x = 2,662,308.88/1,551.28
  6. Step 6: Final answer
    x = 1,716.20

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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.