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Finding the Fourth Proportional to 3,393.84, 5,090.76 and 1,202.80

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Solution

The fourth proportional to 3,393.84, 5,090.76 and 1,202.80 is: 1,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.84 : 5,090.76 = 1,202.80 : x
  2. Step 2: Convert to fraction form
    3,393.84/5,090.76 = 1,202.80/x
  3. Step 3: Cross multiply
    3,393.84x = 5,090.76 × 1,202.80
  4. Step 4: Simplify right side
    3,393.84x = 6,123,166.13
  5. Step 5: Solve for x
    x = 6,123,166.13/3,393.84
  6. Step 6: Final answer
    x = 1,804.20

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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.