Home / 3,159.60-4,733.64-1,427.28

Finding the Fourth Proportional to 3,159.60, 4,733.64 and 1,427.28

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Solution

The fourth proportional to 3,159.60, 4,733.64 and 1,427.28 is: 2,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.60 : 4,733.64 = 1,427.28 : x
  2. Step 2: Convert to fraction form
    3,159.60/4,733.64 = 1,427.28/x
  3. Step 3: Cross multiply
    3,159.60x = 4,733.64 × 1,427.28
  4. Step 4: Simplify right side
    3,159.60x = 6,756,229.70
  5. Step 5: Solve for x
    x = 6,756,229.70/3,159.60
  6. Step 6: Final answer
    x = 2,138.32

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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.