Home / 2,195.18-3,029.39-1,200.45

Finding the Fourth Proportional to 2,195.18, 3,029.39 and 1,200.45

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Solution

The fourth proportional to 2,195.18, 3,029.39 and 1,200.45 is: 1,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.18 : 3,029.39 = 1,200.45 : x
  2. Step 2: Convert to fraction form
    2,195.18/3,029.39 = 1,200.45/x
  3. Step 3: Cross multiply
    2,195.18x = 3,029.39 × 1,200.45
  4. Step 4: Simplify right side
    2,195.18x = 3,636,625.22
  5. Step 5: Solve for x
    x = 3,636,625.22/2,195.18
  6. Step 6: Final answer
    x = 1,656.64

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1.5x scale

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.