Home / 2,419.12-3,338.58-1,371.25

Finding the Fourth Proportional to 2,419.12, 3,338.58 and 1,371.25

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Solution

The fourth proportional to 2,419.12, 3,338.58 and 1,371.25 is: 1,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.12 : 3,338.58 = 1,371.25 : x
  2. Step 2: Convert to fraction form
    2,419.12/3,338.58 = 1,371.25/x
  3. Step 3: Cross multiply
    2,419.12x = 3,338.58 × 1,371.25
  4. Step 4: Simplify right side
    2,419.12x = 4,578,027.83
  5. Step 5: Solve for x
    x = 4,578,027.83/2,419.12
  6. Step 6: Final answer
    x = 1,892.44

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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.