Home / 2,419.92-3,629.64-1,376.64

Finding the Fourth Proportional to 2,419.92, 3,629.64 and 1,376.64

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Solution

The fourth proportional to 2,419.92, 3,629.64 and 1,376.64 is: 2,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.92 : 3,629.64 = 1,376.64 : x
  2. Step 2: Convert to fraction form
    2,419.92/3,629.64 = 1,376.64/x
  3. Step 3: Cross multiply
    2,419.92x = 3,629.64 × 1,376.64
  4. Step 4: Simplify right side
    2,419.92x = 4,996,707.61
  5. Step 5: Solve for x
    x = 4,996,707.61/2,419.92
  6. Step 6: Final answer
    x = 2,064.82

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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.