Home / 1,455.24-2,183.19-530.80

Finding the Fourth Proportional to 1,455.24, 2,183.19 and 530.80

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Solution

The fourth proportional to 1,455.24, 2,183.19 and 530.80 is: 796.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.24 : 2,183.19 = 530.80 : x
  2. Step 2: Convert to fraction form
    1,455.24/2,183.19 = 530.80/x
  3. Step 3: Cross multiply
    1,455.24x = 2,183.19 × 530.80
  4. Step 4: Simplify right side
    1,455.24x = 1,158,837.25
  5. Step 5: Solve for x
    x = 1,158,837.25/1,455.24
  6. Step 6: Final answer
    x = 796.32

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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.