Home / 3,991.60-5,508.41-2,313.33

Finding the Fourth Proportional to 3,991.60, 5,508.41 and 2,313.33

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Solution

The fourth proportional to 3,991.60, 5,508.41 and 2,313.33 is: 3,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.60 : 5,508.41 = 2,313.33 : x
  2. Step 2: Convert to fraction form
    3,991.60/5,508.41 = 2,313.33/x
  3. Step 3: Cross multiply
    3,991.60x = 5,508.41 × 2,313.33
  4. Step 4: Simplify right side
    3,991.60x = 12,742,757.40
  5. Step 5: Solve for x
    x = 12,742,757.40/3,991.60
  6. Step 6: Final answer
    x = 3,192.40

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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.