Home / 2,629.50-3,943.08-1,396.64

Finding the Fourth Proportional to 2,629.50, 3,943.08 and 1,396.64

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Solution

The fourth proportional to 2,629.50, 3,943.08 and 1,396.64 is: 2,094.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.50 : 3,943.08 = 1,396.64 : x
  2. Step 2: Convert to fraction form
    2,629.50/3,943.08 = 1,396.64/x
  3. Step 3: Cross multiply
    2,629.50x = 3,943.08 × 1,396.64
  4. Step 4: Simplify right side
    2,629.50x = 5,507,073.11
  5. Step 5: Solve for x
    x = 5,507,073.11/2,629.50
  6. Step 6: Final answer
    x = 2,094.35

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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.