Home / 3,126.94-4,681.06-1,890.61

Finding the Fourth Proportional to 3,126.94, 4,681.06 and 1,890.61

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Solution

The fourth proportional to 3,126.94, 4,681.06 and 1,890.61 is: 2,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.94 : 4,681.06 = 1,890.61 : x
  2. Step 2: Convert to fraction form
    3,126.94/4,681.06 = 1,890.61/x
  3. Step 3: Cross multiply
    3,126.94x = 4,681.06 × 1,890.61
  4. Step 4: Simplify right side
    3,126.94x = 8,850,042.42
  5. Step 5: Solve for x
    x = 8,850,042.42/3,126.94
  6. Step 6: Final answer
    x = 2,830.26

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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.