Home / 1,150.00-1,723.88-419.07

Finding the Fourth Proportional to 1,150.00, 1,723.88 and 419.07

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Solution

The fourth proportional to 1,150.00, 1,723.88 and 419.07 is: 628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.00 : 1,723.88 = 419.07 : x
  2. Step 2: Convert to fraction form
    1,150.00/1,723.88 = 419.07/x
  3. Step 3: Cross multiply
    1,150.00x = 1,723.88 × 419.07
  4. Step 4: Simplify right side
    1,150.00x = 722,433.90
  5. Step 5: Solve for x
    x = 722,433.90/1,150.00
  6. Step 6: Final answer
    x = 628.20

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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.