Home / 1,455.85-2,183.71-360.18

Finding the Fourth Proportional to 1,455.85, 2,183.71 and 360.18

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Solution

The fourth proportional to 1,455.85, 2,183.71 and 360.18 is: 540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.85 : 2,183.71 = 360.18 : x
  2. Step 2: Convert to fraction form
    1,455.85/2,183.71 = 360.18/x
  3. Step 3: Cross multiply
    1,455.85x = 2,183.71 × 360.18
  4. Step 4: Simplify right side
    1,455.85x = 786,528.67
  5. Step 5: Solve for x
    x = 786,528.67/1,455.85
  6. Step 6: Final answer
    x = 540.26

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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.