Home / 1,301.57-1,949.58-1,211.66

Finding the Fourth Proportional to 1,301.57, 1,949.58 and 1,211.66

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Solution

The fourth proportional to 1,301.57, 1,949.58 and 1,211.66 is: 1,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.57 : 1,949.58 = 1,211.66 : x
  2. Step 2: Convert to fraction form
    1,301.57/1,949.58 = 1,211.66/x
  3. Step 3: Cross multiply
    1,301.57x = 1,949.58 × 1,211.66
  4. Step 4: Simplify right side
    1,301.57x = 2,362,218.35
  5. Step 5: Solve for x
    x = 2,362,218.35/1,301.57
  6. Step 6: Final answer
    x = 1,814.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.