Home / 2,206.58-3,045.06-1,211.81

Finding the Fourth Proportional to 2,206.58, 3,045.06 and 1,211.81

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Solution

The fourth proportional to 2,206.58, 3,045.06 and 1,211.81 is: 1,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.58 : 3,045.06 = 1,211.81 : x
  2. Step 2: Convert to fraction form
    2,206.58/3,045.06 = 1,211.81/x
  3. Step 3: Cross multiply
    2,206.58x = 3,045.06 × 1,211.81
  4. Step 4: Simplify right side
    2,206.58x = 3,690,018.93
  5. Step 5: Solve for x
    x = 3,690,018.93/2,206.58
  6. Step 6: Final answer
    x = 1,672.28

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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.