Home / 2,436.64-3,650.64-1,278.88

Finding the Fourth Proportional to 2,436.64, 3,650.64 and 1,278.88

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Solution

The fourth proportional to 2,436.64, 3,650.64 and 1,278.88 is: 1,916.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.64 : 3,650.64 = 1,278.88 : x
  2. Step 2: Convert to fraction form
    2,436.64/3,650.64 = 1,278.88/x
  3. Step 3: Cross multiply
    2,436.64x = 3,650.64 × 1,278.88
  4. Step 4: Simplify right side
    2,436.64x = 4,668,730.48
  5. Step 5: Solve for x
    x = 4,668,730.48/2,436.64
  6. Step 6: Final answer
    x = 1,916.05

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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.