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Finding the Fourth Proportional to 2,393.88, 3,304.11 and 1,399.62

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Solution

The fourth proportional to 2,393.88, 3,304.11 and 1,399.62 is: 1,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.88 : 3,304.11 = 1,399.62 : x
  2. Step 2: Convert to fraction form
    2,393.88/3,304.11 = 1,399.62/x
  3. Step 3: Cross multiply
    2,393.88x = 3,304.11 × 1,399.62
  4. Step 4: Simplify right side
    2,393.88x = 4,624,498.44
  5. Step 5: Solve for x
    x = 4,624,498.44/2,393.88
  6. Step 6: Final answer
    x = 1,931.80

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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.