Home / 3,119.40-4,305.14-1,793.16

Finding the Fourth Proportional to 3,119.40, 4,305.14 and 1,793.16

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Solution

The fourth proportional to 3,119.40, 4,305.14 and 1,793.16 is: 2,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.40 : 4,305.14 = 1,793.16 : x
  2. Step 2: Convert to fraction form
    3,119.40/4,305.14 = 1,793.16/x
  3. Step 3: Cross multiply
    3,119.40x = 4,305.14 × 1,793.16
  4. Step 4: Simplify right side
    3,119.40x = 7,719,804.84
  5. Step 5: Solve for x
    x = 7,719,804.84/3,119.40
  6. Step 6: Final answer
    x = 2,474.77

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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.