Home / 1,801.25-2,485.38-1,092.90

Finding the Fourth Proportional to 1,801.25, 2,485.38 and 1,092.90

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Solution

The fourth proportional to 1,801.25, 2,485.38 and 1,092.90 is: 1,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.25 : 2,485.38 = 1,092.90 : x
  2. Step 2: Convert to fraction form
    1,801.25/2,485.38 = 1,092.90/x
  3. Step 3: Cross multiply
    1,801.25x = 2,485.38 × 1,092.90
  4. Step 4: Simplify right side
    1,801.25x = 2,716,271.80
  5. Step 5: Solve for x
    x = 2,716,271.80/1,801.25
  6. Step 6: Final answer
    x = 1,507.99

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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.