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Finding the Fourth Proportional to 3,898.70, 5,847.49 and 2,318.35

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Solution

The fourth proportional to 3,898.70, 5,847.49 and 2,318.35 is: 3,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.70 : 5,847.49 = 2,318.35 : x
  2. Step 2: Convert to fraction form
    3,898.70/5,847.49 = 2,318.35/x
  3. Step 3: Cross multiply
    3,898.70x = 5,847.49 × 2,318.35
  4. Step 4: Simplify right side
    3,898.70x = 13,556,528.44
  5. Step 5: Solve for x
    x = 13,556,528.44/3,898.70
  6. Step 6: Final answer
    x = 3,477.19

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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.