Home / 2,906.09-4,010.55-1,647.20

Finding the Fourth Proportional to 2,906.09, 4,010.55 and 1,647.20

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Solution

The fourth proportional to 2,906.09, 4,010.55 and 1,647.20 is: 2,273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.09 : 4,010.55 = 1,647.20 : x
  2. Step 2: Convert to fraction form
    2,906.09/4,010.55 = 1,647.20/x
  3. Step 3: Cross multiply
    2,906.09x = 4,010.55 × 1,647.20
  4. Step 4: Simplify right side
    2,906.09x = 6,606,177.96
  5. Step 5: Solve for x
    x = 6,606,177.96/2,906.09
  6. Step 6: Final answer
    x = 2,273.22

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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.