Home / 1,629.23-2,431.98-1,515.29

Finding the Fourth Proportional to 1,629.23, 2,431.98 and 1,515.29

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Solution

The fourth proportional to 1,629.23, 2,431.98 and 1,515.29 is: 2,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.23 : 2,431.98 = 1,515.29 : x
  2. Step 2: Convert to fraction form
    1,629.23/2,431.98 = 1,515.29/x
  3. Step 3: Cross multiply
    1,629.23x = 2,431.98 × 1,515.29
  4. Step 4: Simplify right side
    1,629.23x = 3,685,142.81
  5. Step 5: Solve for x
    x = 3,685,142.81/1,629.23
  6. Step 6: Final answer
    x = 2,261.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.