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Finding the Fourth Proportional to 3,772.70, 5,658.30 and 1,898.09

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Solution

The fourth proportional to 3,772.70, 5,658.30 and 1,898.09 is: 2,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.70 : 5,658.30 = 1,898.09 : x
  2. Step 2: Convert to fraction form
    3,772.70/5,658.30 = 1,898.09/x
  3. Step 3: Cross multiply
    3,772.70x = 5,658.30 × 1,898.09
  4. Step 4: Simplify right side
    3,772.70x = 10,739,955.57
  5. Step 5: Solve for x
    x = 10,739,955.57/3,772.70
  6. Step 6: Final answer
    x = 2,846.76

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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.