Home / 2,618.42-3,615.08-1,625.15

Finding the Fourth Proportional to 2,618.42, 3,615.08 and 1,625.15

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Solution

The fourth proportional to 2,618.42, 3,615.08 and 1,625.15 is: 2,243.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.42 : 3,615.08 = 1,625.15 : x
  2. Step 2: Convert to fraction form
    2,618.42/3,615.08 = 1,625.15/x
  3. Step 3: Cross multiply
    2,618.42x = 3,615.08 × 1,625.15
  4. Step 4: Simplify right side
    2,618.42x = 5,875,021.06
  5. Step 5: Solve for x
    x = 5,875,021.06/2,618.42
  6. Step 6: Final answer
    x = 2,243.73

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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.