Home / 2,195.04-3,029.76-1,311.44

Finding the Fourth Proportional to 2,195.04, 3,029.76 and 1,311.44

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Solution

The fourth proportional to 2,195.04, 3,029.76 and 1,311.44 is: 1,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.04 : 3,029.76 = 1,311.44 : x
  2. Step 2: Convert to fraction form
    2,195.04/3,029.76 = 1,311.44/x
  3. Step 3: Cross multiply
    2,195.04x = 3,029.76 × 1,311.44
  4. Step 4: Simplify right side
    2,195.04x = 3,973,348.45
  5. Step 5: Solve for x
    x = 3,973,348.45/2,195.04
  6. Step 6: Final answer
    x = 1,810.15

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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.