Home / 2,873.09-3,965.06-1,930.46

Finding the Fourth Proportional to 2,873.09, 3,965.06 and 1,930.46

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Solution

The fourth proportional to 2,873.09, 3,965.06 and 1,930.46 is: 2,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.09 : 3,965.06 = 1,930.46 : x
  2. Step 2: Convert to fraction form
    2,873.09/3,965.06 = 1,930.46/x
  3. Step 3: Cross multiply
    2,873.09x = 3,965.06 × 1,930.46
  4. Step 4: Simplify right side
    2,873.09x = 7,654,360.25
  5. Step 5: Solve for x
    x = 7,654,360.25/2,873.09
  6. Step 6: Final answer
    x = 2,664.16

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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.