Home / 1,629.21-2,443.81-655.08

Finding the Fourth Proportional to 1,629.21, 2,443.81 and 655.08

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Solution

The fourth proportional to 1,629.21, 2,443.81 and 655.08 is: 982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.21 : 2,443.81 = 655.08 : x
  2. Step 2: Convert to fraction form
    1,629.21/2,443.81 = 655.08/x
  3. Step 3: Cross multiply
    1,629.21x = 2,443.81 × 655.08
  4. Step 4: Simplify right side
    1,629.21x = 1,600,898.80
  5. Step 5: Solve for x
    x = 1,600,898.80/1,629.21
  6. Step 6: Final answer
    x = 982.62

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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.