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Finding the Fourth Proportional to 3,602.40, 5,399.40 and 1,654.80

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Solution

The fourth proportional to 3,602.40, 5,399.40 and 1,654.80 is: 2,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.40 : 5,399.40 = 1,654.80 : x
  2. Step 2: Convert to fraction form
    3,602.40/5,399.40 = 1,654.80/x
  3. Step 3: Cross multiply
    3,602.40x = 5,399.40 × 1,654.80
  4. Step 4: Simplify right side
    3,602.40x = 8,934,927.12
  5. Step 5: Solve for x
    x = 8,934,927.12/3,602.40
  6. Step 6: Final answer
    x = 2,480.27

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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.