Home / 1,418.26-2,130.12-1,200.77

Finding the Fourth Proportional to 1,418.26, 2,130.12 and 1,200.77

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Solution

The fourth proportional to 1,418.26, 2,130.12 and 1,200.77 is: 1,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.26 : 2,130.12 = 1,200.77 : x
  2. Step 2: Convert to fraction form
    1,418.26/2,130.12 = 1,200.77/x
  3. Step 3: Cross multiply
    1,418.26x = 2,130.12 × 1,200.77
  4. Step 4: Simplify right side
    1,418.26x = 2,557,789.52
  5. Step 5: Solve for x
    x = 2,557,789.52/1,418.26
  6. Step 6: Final answer
    x = 1,803.47

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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.