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Finding the Fourth Proportional to 2,283.37, 3,425.04 and 639.94

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Solution

The fourth proportional to 2,283.37, 3,425.04 and 639.94 is: 959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.37 : 3,425.04 = 639.94 : x
  2. Step 2: Convert to fraction form
    2,283.37/3,425.04 = 639.94/x
  3. Step 3: Cross multiply
    2,283.37x = 3,425.04 × 639.94
  4. Step 4: Simplify right side
    2,283.37x = 2,191,820.10
  5. Step 5: Solve for x
    x = 2,191,820.10/2,283.37
  6. Step 6: Final answer
    x = 959.91

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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.