Home / 2,195.56-3,029.86-1,200.84

Finding the Fourth Proportional to 2,195.56, 3,029.86 and 1,200.84

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Solution

The fourth proportional to 2,195.56, 3,029.86 and 1,200.84 is: 1,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.56 : 3,029.86 = 1,200.84 : x
  2. Step 2: Convert to fraction form
    2,195.56/3,029.86 = 1,200.84/x
  3. Step 3: Cross multiply
    2,195.56x = 3,029.86 × 1,200.84
  4. Step 4: Simplify right side
    2,195.56x = 3,638,377.08
  5. Step 5: Solve for x
    x = 3,638,377.08/2,195.56
  6. Step 6: Final answer
    x = 1,657.15

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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.