Home / 3,019.45-4,162.94-1,955.32

Finding the Fourth Proportional to 3,019.45, 4,162.94 and 1,955.32

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Solution

The fourth proportional to 3,019.45, 4,162.94 and 1,955.32 is: 2,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.45 : 4,162.94 = 1,955.32 : x
  2. Step 2: Convert to fraction form
    3,019.45/4,162.94 = 1,955.32/x
  3. Step 3: Cross multiply
    3,019.45x = 4,162.94 × 1,955.32
  4. Step 4: Simplify right side
    3,019.45x = 8,139,849.25
  5. Step 5: Solve for x
    x = 8,139,849.25/3,019.45
  6. Step 6: Final answer
    x = 2,695.81

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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.