Home / 2,419.57-3,338.89-1,371.64

Finding the Fourth Proportional to 2,419.57, 3,338.89 and 1,371.64

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Solution

The fourth proportional to 2,419.57, 3,338.89 and 1,371.64 is: 1,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.57 : 3,338.89 = 1,371.64 : x
  2. Step 2: Convert to fraction form
    2,419.57/3,338.89 = 1,371.64/x
  3. Step 3: Cross multiply
    2,419.57x = 3,338.89 × 1,371.64
  4. Step 4: Simplify right side
    2,419.57x = 4,579,755.08
  5. Step 5: Solve for x
    x = 4,579,755.08/2,419.57
  6. Step 6: Final answer
    x = 1,892.80

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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.