Home / 3,419.64-4,719.42-1,927.86

Finding the Fourth Proportional to 3,419.64, 4,719.42 and 1,927.86

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Solution

The fourth proportional to 3,419.64, 4,719.42 and 1,927.86 is: 2,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.64 : 4,719.42 = 1,927.86 : x
  2. Step 2: Convert to fraction form
    3,419.64/4,719.42 = 1,927.86/x
  3. Step 3: Cross multiply
    3,419.64x = 4,719.42 × 1,927.86
  4. Step 4: Simplify right side
    3,419.64x = 9,098,381.04
  5. Step 5: Solve for x
    x = 9,098,381.04/3,419.64
  6. Step 6: Final answer
    x = 2,660.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.