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Finding the Fourth Proportional to 3,902.88, 5,850.48 and 1,709.40

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Solution

The fourth proportional to 3,902.88, 5,850.48 and 1,709.40 is: 2,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.88 : 5,850.48 = 1,709.40 : x
  2. Step 2: Convert to fraction form
    3,902.88/5,850.48 = 1,709.40/x
  3. Step 3: Cross multiply
    3,902.88x = 5,850.48 × 1,709.40
  4. Step 4: Simplify right side
    3,902.88x = 10,000,810.51
  5. Step 5: Solve for x
    x = 10,000,810.51/3,902.88
  6. Step 6: Final answer
    x = 2,562.42

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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.