Home / 1,629.50-2,444.19-459.51

Finding the Fourth Proportional to 1,629.50, 2,444.19 and 459.51

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Solution

The fourth proportional to 1,629.50, 2,444.19 and 459.51 is: 689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.50 : 2,444.19 = 459.51 : x
  2. Step 2: Convert to fraction form
    1,629.50/2,444.19 = 459.51/x
  3. Step 3: Cross multiply
    1,629.50x = 2,444.19 × 459.51
  4. Step 4: Simplify right side
    1,629.50x = 1,123,129.75
  5. Step 5: Solve for x
    x = 1,123,129.75/1,629.50
  6. Step 6: Final answer
    x = 689.25

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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.