Home / 1,801.28-2,485.82-1,102.26

Finding the Fourth Proportional to 1,801.28, 2,485.82 and 1,102.26

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Solution

The fourth proportional to 1,801.28, 2,485.82 and 1,102.26 is: 1,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.28 : 2,485.82 = 1,102.26 : x
  2. Step 2: Convert to fraction form
    1,801.28/2,485.82 = 1,102.26/x
  3. Step 3: Cross multiply
    1,801.28x = 2,485.82 × 1,102.26
  4. Step 4: Simplify right side
    1,801.28x = 2,740,019.95
  5. Step 5: Solve for x
    x = 2,740,019.95/1,801.28
  6. Step 6: Final answer
    x = 1,521.15

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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.