Home / 3,355.31-4,629.16-2,078.19

Finding the Fourth Proportional to 3,355.31, 4,629.16 and 2,078.19

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Solution

The fourth proportional to 3,355.31, 4,629.16 and 2,078.19 is: 2,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.31 : 4,629.16 = 2,078.19 : x
  2. Step 2: Convert to fraction form
    3,355.31/4,629.16 = 2,078.19/x
  3. Step 3: Cross multiply
    3,355.31x = 4,629.16 × 2,078.19
  4. Step 4: Simplify right side
    3,355.31x = 9,620,274.02
  5. Step 5: Solve for x
    x = 9,620,274.02/3,355.31
  6. Step 6: Final answer
    x = 2,867.18

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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.