Home / 2,415.17-3,623.81-1,028.65

Finding the Fourth Proportional to 2,415.17, 3,623.81 and 1,028.65

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Solution

The fourth proportional to 2,415.17, 3,623.81 and 1,028.65 is: 1,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.17 : 3,623.81 = 1,028.65 : x
  2. Step 2: Convert to fraction form
    2,415.17/3,623.81 = 1,028.65/x
  3. Step 3: Cross multiply
    2,415.17x = 3,623.81 × 1,028.65
  4. Step 4: Simplify right side
    2,415.17x = 3,727,617.95
  5. Step 5: Solve for x
    x = 3,727,617.95/2,415.17
  6. Step 6: Final answer
    x = 1,543.42

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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.