Home / 1,455.80-2,183.68-360.17

Finding the Fourth Proportional to 1,455.80, 2,183.68 and 360.17

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Solution

The fourth proportional to 1,455.80, 2,183.68 and 360.17 is: 540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.80 : 2,183.68 = 360.17 : x
  2. Step 2: Convert to fraction form
    1,455.80/2,183.68 = 360.17/x
  3. Step 3: Cross multiply
    1,455.80x = 2,183.68 × 360.17
  4. Step 4: Simplify right side
    1,455.80x = 786,483.31
  5. Step 5: Solve for x
    x = 786,483.31/1,455.80
  6. Step 6: Final answer
    x = 540.24

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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.