Home / 2,906.90-4,011.24-1,647.86

Finding the Fourth Proportional to 2,906.90, 4,011.24 and 1,647.86

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Solution

The fourth proportional to 2,906.90, 4,011.24 and 1,647.86 is: 2,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.90 : 4,011.24 = 1,647.86 : x
  2. Step 2: Convert to fraction form
    2,906.90/4,011.24 = 1,647.86/x
  3. Step 3: Cross multiply
    2,906.90x = 4,011.24 × 1,647.86
  4. Step 4: Simplify right side
    2,906.90x = 6,609,961.95
  5. Step 5: Solve for x
    x = 6,609,961.95/2,906.90
  6. Step 6: Final answer
    x = 2,273.89

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1.5x scale

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.