Home / 2,621.74-3,617.99-1,442.81

Finding the Fourth Proportional to 2,621.74, 3,617.99 and 1,442.81

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Solution

The fourth proportional to 2,621.74, 3,617.99 and 1,442.81 is: 1,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.74 : 3,617.99 = 1,442.81 : x
  2. Step 2: Convert to fraction form
    2,621.74/3,617.99 = 1,442.81/x
  3. Step 3: Cross multiply
    2,621.74x = 3,617.99 × 1,442.81
  4. Step 4: Simplify right side
    2,621.74x = 5,220,054.06
  5. Step 5: Solve for x
    x = 5,220,054.06/2,621.74
  6. Step 6: Final answer
    x = 1,991.06

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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.