Home / 3,365.15-4,642.31-2,185.79

Finding the Fourth Proportional to 3,365.15, 4,642.31 and 2,185.79

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Solution

The fourth proportional to 3,365.15, 4,642.31 and 2,185.79 is: 3,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.15 : 4,642.31 = 2,185.79 : x
  2. Step 2: Convert to fraction form
    3,365.15/4,642.31 = 2,185.79/x
  3. Step 3: Cross multiply
    3,365.15x = 4,642.31 × 2,185.79
  4. Step 4: Simplify right side
    3,365.15x = 10,147,097.03
  5. Step 5: Solve for x
    x = 10,147,097.03/3,365.15
  6. Step 6: Final answer
    x = 3,015.35

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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.