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Finding the Fourth Proportional to 3,970.52, 5,953.60 and 1,890.98

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Solution

The fourth proportional to 3,970.52, 5,953.60 and 1,890.98 is: 2,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.52 : 5,953.60 = 1,890.98 : x
  2. Step 2: Convert to fraction form
    3,970.52/5,953.60 = 1,890.98/x
  3. Step 3: Cross multiply
    3,970.52x = 5,953.60 × 1,890.98
  4. Step 4: Simplify right side
    3,970.52x = 11,258,133.45
  5. Step 5: Solve for x
    x = 11,258,133.45/3,970.52
  6. Step 6: Final answer
    x = 2,835.43

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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.