Home / 2,195.21-3,029.36-1,200.47

Finding the Fourth Proportional to 2,195.21, 3,029.36 and 1,200.47

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Solution

The fourth proportional to 2,195.21, 3,029.36 and 1,200.47 is: 1,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.21 : 3,029.36 = 1,200.47 : x
  2. Step 2: Convert to fraction form
    2,195.21/3,029.36 = 1,200.47/x
  3. Step 3: Cross multiply
    2,195.21x = 3,029.36 × 1,200.47
  4. Step 4: Simplify right side
    2,195.21x = 3,636,655.80
  5. Step 5: Solve for x
    x = 3,636,655.80/2,195.21
  6. Step 6: Final answer
    x = 1,656.64

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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.