Home / 1,474.89-2,212.35-1,279.27

Finding the Fourth Proportional to 1,474.89, 2,212.35 and 1,279.27

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Solution

The fourth proportional to 1,474.89, 2,212.35 and 1,279.27 is: 1,918.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.89 : 2,212.35 = 1,279.27 : x
  2. Step 2: Convert to fraction form
    1,474.89/2,212.35 = 1,279.27/x
  3. Step 3: Cross multiply
    1,474.89x = 2,212.35 × 1,279.27
  4. Step 4: Simplify right side
    1,474.89x = 2,830,192.98
  5. Step 5: Solve for x
    x = 2,830,192.98/1,474.89
  6. Step 6: Final answer
    x = 1,918.92

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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.