Home / 2,621.61-3,617.99-1,442.66

Finding the Fourth Proportional to 2,621.61, 3,617.99 and 1,442.66

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Solution

The fourth proportional to 2,621.61, 3,617.99 and 1,442.66 is: 1,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.61 : 3,617.99 = 1,442.66 : x
  2. Step 2: Convert to fraction form
    2,621.61/3,617.99 = 1,442.66/x
  3. Step 3: Cross multiply
    2,621.61x = 3,617.99 × 1,442.66
  4. Step 4: Simplify right side
    2,621.61x = 5,219,514.97
  5. Step 5: Solve for x
    x = 5,219,514.97/2,621.61
  6. Step 6: Final answer
    x = 1,990.96

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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.