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Finding the Fourth Proportional to 1,508.64, 2,263.60 and 892.64

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Solution

The fourth proportional to 1,508.64, 2,263.60 and 892.64 is: 1,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.64 : 2,263.60 = 892.64 : x
  2. Step 2: Convert to fraction form
    1,508.64/2,263.60 = 892.64/x
  3. Step 3: Cross multiply
    1,508.64x = 2,263.60 × 892.64
  4. Step 4: Simplify right side
    1,508.64x = 2,020,579.90
  5. Step 5: Solve for x
    x = 2,020,579.90/1,508.64
  6. Step 6: Final answer
    x = 1,339.34

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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.