Home / 2,640.13-3,643.46-1,461.31

Finding the Fourth Proportional to 2,640.13, 3,643.46 and 1,461.31

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Solution

The fourth proportional to 2,640.13, 3,643.46 and 1,461.31 is: 2,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.13 : 3,643.46 = 1,461.31 : x
  2. Step 2: Convert to fraction form
    2,640.13/3,643.46 = 1,461.31/x
  3. Step 3: Cross multiply
    2,640.13x = 3,643.46 × 1,461.31
  4. Step 4: Simplify right side
    2,640.13x = 5,324,224.53
  5. Step 5: Solve for x
    x = 5,324,224.53/2,640.13
  6. Step 6: Final answer
    x = 2,016.65

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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.