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Finding the Fourth Proportional to 2,201.50, 3,303.78 and 902.98

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Solution

The fourth proportional to 2,201.50, 3,303.78 and 902.98 is: 1,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.50 : 3,303.78 = 902.98 : x
  2. Step 2: Convert to fraction form
    2,201.50/3,303.78 = 902.98/x
  3. Step 3: Cross multiply
    2,201.50x = 3,303.78 × 902.98
  4. Step 4: Simplify right side
    2,201.50x = 2,983,247.26
  5. Step 5: Solve for x
    x = 2,983,247.26/2,201.50
  6. Step 6: Final answer
    x = 1,355.10

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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.