Home / 2,274.61-3,137.94-1,390.93

Finding the Fourth Proportional to 2,274.61, 3,137.94 and 1,390.93

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Solution

The fourth proportional to 2,274.61, 3,137.94 and 1,390.93 is: 1,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.61 : 3,137.94 = 1,390.93 : x
  2. Step 2: Convert to fraction form
    2,274.61/3,137.94 = 1,390.93/x
  3. Step 3: Cross multiply
    2,274.61x = 3,137.94 × 1,390.93
  4. Step 4: Simplify right side
    2,274.61x = 4,364,654.88
  5. Step 5: Solve for x
    x = 4,364,654.88/2,274.61
  6. Step 6: Final answer
    x = 1,918.86

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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.