Home / 1,621.49-2,236.84-1,062.90

Finding the Fourth Proportional to 1,621.49, 2,236.84 and 1,062.90

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Solution

The fourth proportional to 1,621.49, 2,236.84 and 1,062.90 is: 1,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.49 : 2,236.84 = 1,062.90 : x
  2. Step 2: Convert to fraction form
    1,621.49/2,236.84 = 1,062.90/x
  3. Step 3: Cross multiply
    1,621.49x = 2,236.84 × 1,062.90
  4. Step 4: Simplify right side
    1,621.49x = 2,377,537.24
  5. Step 5: Solve for x
    x = 2,377,537.24/1,621.49
  6. Step 6: Final answer
    x = 1,466.27

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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.