Home / 2,415.31-3,623.38-1,028.66

Finding the Fourth Proportional to 2,415.31, 3,623.38 and 1,028.66

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Solution

The fourth proportional to 2,415.31, 3,623.38 and 1,028.66 is: 1,543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.31 : 3,623.38 = 1,028.66 : x
  2. Step 2: Convert to fraction form
    2,415.31/3,623.38 = 1,028.66/x
  3. Step 3: Cross multiply
    2,415.31x = 3,623.38 × 1,028.66
  4. Step 4: Simplify right side
    2,415.31x = 3,727,226.07
  5. Step 5: Solve for x
    x = 3,727,226.07/2,415.31
  6. Step 6: Final answer
    x = 1,543.17

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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.