Home / 3,185.15-4,395.66-1,858.73

Finding the Fourth Proportional to 3,185.15, 4,395.66 and 1,858.73

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Solution

The fourth proportional to 3,185.15, 4,395.66 and 1,858.73 is: 2,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.15 : 4,395.66 = 1,858.73 : x
  2. Step 2: Convert to fraction form
    3,185.15/4,395.66 = 1,858.73/x
  3. Step 3: Cross multiply
    3,185.15x = 4,395.66 × 1,858.73
  4. Step 4: Simplify right side
    3,185.15x = 8,170,345.11
  5. Step 5: Solve for x
    x = 8,170,345.11/3,185.15
  6. Step 6: Final answer
    x = 2,565.14

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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.