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Finding the Fourth Proportional to 3,393.38, 5,089.59 and 1,890.93

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Solution

The fourth proportional to 3,393.38, 5,089.59 and 1,890.93 is: 2,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.38 : 5,089.59 = 1,890.93 : x
  2. Step 2: Convert to fraction form
    3,393.38/5,089.59 = 1,890.93/x
  3. Step 3: Cross multiply
    3,393.38x = 5,089.59 × 1,890.93
  4. Step 4: Simplify right side
    3,393.38x = 9,624,048.06
  5. Step 5: Solve for x
    x = 9,624,048.06/3,393.38
  6. Step 6: Final answer
    x = 2,836.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.