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Finding the Fourth Proportional to 2,393.92, 3,303.66 and 1,399.96

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Solution

The fourth proportional to 2,393.92, 3,303.66 and 1,399.96 is: 1,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.92 : 3,303.66 = 1,399.96 : x
  2. Step 2: Convert to fraction form
    2,393.92/3,303.66 = 1,399.96/x
  3. Step 3: Cross multiply
    2,393.92x = 3,303.66 × 1,399.96
  4. Step 4: Simplify right side
    2,393.92x = 4,624,991.85
  5. Step 5: Solve for x
    x = 4,624,991.85/2,393.92
  6. Step 6: Final answer
    x = 1,931.97

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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.