Home / 4,629.31-6,388.37-2,639.89

Finding the Fourth Proportional to 4,629.31, 6,388.37 and 2,639.89

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Solution

The fourth proportional to 4,629.31, 6,388.37 and 2,639.89 is: 3,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.31 : 6,388.37 = 2,639.89 : x
  2. Step 2: Convert to fraction form
    4,629.31/6,388.37 = 2,639.89/x
  3. Step 3: Cross multiply
    4,629.31x = 6,388.37 × 2,639.89
  4. Step 4: Simplify right side
    4,629.31x = 16,864,594.08
  5. Step 5: Solve for x
    x = 16,864,594.08/4,629.31
  6. Step 6: Final answer
    x = 3,643.01

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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.