Home / 1,150.19-1,724.44-419.77

Finding the Fourth Proportional to 1,150.19, 1,724.44 and 419.77

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Solution

The fourth proportional to 1,150.19, 1,724.44 and 419.77 is: 629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.19 : 1,724.44 = 419.77 : x
  2. Step 2: Convert to fraction form
    1,150.19/1,724.44 = 419.77/x
  3. Step 3: Cross multiply
    1,150.19x = 1,724.44 × 419.77
  4. Step 4: Simplify right side
    1,150.19x = 723,868.18
  5. Step 5: Solve for x
    x = 723,868.18/1,150.19
  6. Step 6: Final answer
    x = 629.35

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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.