Home / 1,629.23-2,430.91-1,591.90

Finding the Fourth Proportional to 1,629.23, 2,430.91 and 1,591.90

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Solution

The fourth proportional to 1,629.23, 2,430.91 and 1,591.90 is: 2,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.23 : 2,430.91 = 1,591.90 : x
  2. Step 2: Convert to fraction form
    1,629.23/2,430.91 = 1,591.90/x
  3. Step 3: Cross multiply
    1,629.23x = 2,430.91 × 1,591.90
  4. Step 4: Simplify right side
    1,629.23x = 3,869,765.63
  5. Step 5: Solve for x
    x = 3,869,765.63/1,629.23
  6. Step 6: Final answer
    x = 2,375.21

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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.