Home / 2,311.12-3,190.76-1,504.35

Finding the Fourth Proportional to 2,311.12, 3,190.76 and 1,504.35

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Solution

The fourth proportional to 2,311.12, 3,190.76 and 1,504.35 is: 2,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.12 : 3,190.76 = 1,504.35 : x
  2. Step 2: Convert to fraction form
    2,311.12/3,190.76 = 1,504.35/x
  3. Step 3: Cross multiply
    2,311.12x = 3,190.76 × 1,504.35
  4. Step 4: Simplify right side
    2,311.12x = 4,800,015.59
  5. Step 5: Solve for x
    x = 4,800,015.59/2,311.12
  6. Step 6: Final answer
    x = 2,076.92

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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.