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Finding the Fourth Proportional to 2,719.26, 4,076.51 and 963.99

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Solution

The fourth proportional to 2,719.26, 4,076.51 and 963.99 is: 1,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.26 : 4,076.51 = 963.99 : x
  2. Step 2: Convert to fraction form
    2,719.26/4,076.51 = 963.99/x
  3. Step 3: Cross multiply
    2,719.26x = 4,076.51 × 963.99
  4. Step 4: Simplify right side
    2,719.26x = 3,929,714.87
  5. Step 5: Solve for x
    x = 3,929,714.87/2,719.26
  6. Step 6: Final answer
    x = 1,445.14

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1.5x scale

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.