Home / 2,205.80-3,043.16-1,343.15

Finding the Fourth Proportional to 2,205.80, 3,043.16 and 1,343.15

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Solution

The fourth proportional to 2,205.80, 3,043.16 and 1,343.15 is: 1,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.80 : 3,043.16 = 1,343.15 : x
  2. Step 2: Convert to fraction form
    2,205.80/3,043.16 = 1,343.15/x
  3. Step 3: Cross multiply
    2,205.80x = 3,043.16 × 1,343.15
  4. Step 4: Simplify right side
    2,205.80x = 4,087,398.42
  5. Step 5: Solve for x
    x = 4,087,398.42/2,205.80
  6. Step 6: Final answer
    x = 1,853.03

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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.