Home / 1,693.21-2,541.62-1,422.26

Finding the Fourth Proportional to 1,693.21, 2,541.62 and 1,422.26

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Solution

The fourth proportional to 1,693.21, 2,541.62 and 1,422.26 is: 2,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.21 : 2,541.62 = 1,422.26 : x
  2. Step 2: Convert to fraction form
    1,693.21/2,541.62 = 1,422.26/x
  3. Step 3: Cross multiply
    1,693.21x = 2,541.62 × 1,422.26
  4. Step 4: Simplify right side
    1,693.21x = 3,614,844.46
  5. Step 5: Solve for x
    x = 3,614,844.46/1,693.21
  6. Step 6: Final answer
    x = 2,134.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.