Home / 1,629.37-2,443.75-459.08

Finding the Fourth Proportional to 1,629.37, 2,443.75 and 459.08

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Solution

The fourth proportional to 1,629.37, 2,443.75 and 459.08 is: 688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.37 : 2,443.75 = 459.08 : x
  2. Step 2: Convert to fraction form
    1,629.37/2,443.75 = 459.08/x
  3. Step 3: Cross multiply
    1,629.37x = 2,443.75 × 459.08
  4. Step 4: Simplify right side
    1,629.37x = 1,121,874.45
  5. Step 5: Solve for x
    x = 1,121,874.45/1,629.37
  6. Step 6: Final answer
    x = 688.53

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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.