Home / 2,183.48-3,013.28-1,188.71

Finding the Fourth Proportional to 2,183.48, 3,013.28 and 1,188.71

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Solution

The fourth proportional to 2,183.48, 3,013.28 and 1,188.71 is: 1,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.48 : 3,013.28 = 1,188.71 : x
  2. Step 2: Convert to fraction form
    2,183.48/3,013.28 = 1,188.71/x
  3. Step 3: Cross multiply
    2,183.48x = 3,013.28 × 1,188.71
  4. Step 4: Simplify right side
    2,183.48x = 3,581,895.06
  5. Step 5: Solve for x
    x = 3,581,895.06/2,183.48
  6. Step 6: Final answer
    x = 1,640.46

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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.