Home / 2,415.58-3,620.76-1,028.68

Finding the Fourth Proportional to 2,415.58, 3,620.76 and 1,028.68

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Solution

The fourth proportional to 2,415.58, 3,620.76 and 1,028.68 is: 1,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.58 : 3,620.76 = 1,028.68 : x
  2. Step 2: Convert to fraction form
    2,415.58/3,620.76 = 1,028.68/x
  3. Step 3: Cross multiply
    2,415.58x = 3,620.76 × 1,028.68
  4. Step 4: Simplify right side
    2,415.58x = 3,724,603.40
  5. Step 5: Solve for x
    x = 3,724,603.40/2,415.58
  6. Step 6: Final answer
    x = 1,541.91

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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.