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Finding the Fourth Proportional to 2,453.14, 3,679.37 and 698.28

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Solution

The fourth proportional to 2,453.14, 3,679.37 and 698.28 is: 1,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.14 : 3,679.37 = 698.28 : x
  2. Step 2: Convert to fraction form
    2,453.14/3,679.37 = 698.28/x
  3. Step 3: Cross multiply
    2,453.14x = 3,679.37 × 698.28
  4. Step 4: Simplify right side
    2,453.14x = 2,569,230.48
  5. Step 5: Solve for x
    x = 2,569,230.48/2,453.14
  6. Step 6: Final answer
    x = 1,047.32

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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.