Home / 3,419.92-4,719.43-1,927.81

Finding the Fourth Proportional to 3,419.92, 4,719.43 and 1,927.81

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Solution

The fourth proportional to 3,419.92, 4,719.43 and 1,927.81 is: 2,660.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.92 : 4,719.43 = 1,927.81 : x
  2. Step 2: Convert to fraction form
    3,419.92/4,719.43 = 1,927.81/x
  3. Step 3: Cross multiply
    3,419.92x = 4,719.43 × 1,927.81
  4. Step 4: Simplify right side
    3,419.92x = 9,098,154.71
  5. Step 5: Solve for x
    x = 9,098,154.71/3,419.92
  6. Step 6: Final answer
    x = 2,660.34

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1.5x scale

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.