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Finding the Fourth Proportional to 3,002.80, 4,505.21 and 1,893.08

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Solution

The fourth proportional to 3,002.80, 4,505.21 and 1,893.08 is: 2,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.80 : 4,505.21 = 1,893.08 : x
  2. Step 2: Convert to fraction form
    3,002.80/4,505.21 = 1,893.08/x
  3. Step 3: Cross multiply
    3,002.80x = 4,505.21 × 1,893.08
  4. Step 4: Simplify right side
    3,002.80x = 8,528,700.42
  5. Step 5: Solve for x
    x = 8,528,700.42/3,002.80
  6. Step 6: Final answer
    x = 2,840.25

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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.