Home / 3,311.70-4,565.34-2,313.88

Finding the Fourth Proportional to 3,311.70, 4,565.34 and 2,313.88

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Solution

The fourth proportional to 3,311.70, 4,565.34 and 2,313.88 is: 3,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.70 : 4,565.34 = 2,313.88 : x
  2. Step 2: Convert to fraction form
    3,311.70/4,565.34 = 2,313.88/x
  3. Step 3: Cross multiply
    3,311.70x = 4,565.34 × 2,313.88
  4. Step 4: Simplify right side
    3,311.70x = 10,563,656.68
  5. Step 5: Solve for x
    x = 10,563,656.68/3,311.70
  6. Step 6: Final answer
    x = 3,189.80

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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.