Home / 1,581.24-2,183.13-1,083.72

Finding the Fourth Proportional to 1,581.24, 2,183.13 and 1,083.72

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Solution

The fourth proportional to 1,581.24, 2,183.13 and 1,083.72 is: 1,496.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.24 : 2,183.13 = 1,083.72 : x
  2. Step 2: Convert to fraction form
    1,581.24/2,183.13 = 1,083.72/x
  3. Step 3: Cross multiply
    1,581.24x = 2,183.13 × 1,083.72
  4. Step 4: Simplify right side
    1,581.24x = 2,365,901.64
  5. Step 5: Solve for x
    x = 2,365,901.64/1,581.24
  6. Step 6: Final answer
    x = 1,496.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.