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Finding the Fourth Proportional to 3,491.87, 4,820.47 and 2,743.43

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Solution

The fourth proportional to 3,491.87, 4,820.47 and 2,743.43 is: 3,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.87 : 4,820.47 = 2,743.43 : x
  2. Step 2: Convert to fraction form
    3,491.87/4,820.47 = 2,743.43/x
  3. Step 3: Cross multiply
    3,491.87x = 4,820.47 × 2,743.43
  4. Step 4: Simplify right side
    3,491.87x = 13,224,622.01
  5. Step 5: Solve for x
    x = 13,224,622.01/3,491.87
  6. Step 6: Final answer
    x = 3,787.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.