Home / 2,459.38-3,393.94-1,355.38

Finding the Fourth Proportional to 2,459.38, 3,393.94 and 1,355.38

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Solution

The fourth proportional to 2,459.38, 3,393.94 and 1,355.38 is: 1,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.38 : 3,393.94 = 1,355.38 : x
  2. Step 2: Convert to fraction form
    2,459.38/3,393.94 = 1,355.38/x
  3. Step 3: Cross multiply
    2,459.38x = 3,393.94 × 1,355.38
  4. Step 4: Simplify right side
    2,459.38x = 4,600,078.40
  5. Step 5: Solve for x
    x = 4,600,078.40/2,459.38
  6. Step 6: Final answer
    x = 1,870.42

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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.