Home / 2,183.41-3,013.16-1,188.75

Finding the Fourth Proportional to 2,183.41, 3,013.16 and 1,188.75

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Solution

The fourth proportional to 2,183.41, 3,013.16 and 1,188.75 is: 1,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.41 : 3,013.16 = 1,188.75 : x
  2. Step 2: Convert to fraction form
    2,183.41/3,013.16 = 1,188.75/x
  3. Step 3: Cross multiply
    2,183.41x = 3,013.16 × 1,188.75
  4. Step 4: Simplify right side
    2,183.41x = 3,581,893.95
  5. Step 5: Solve for x
    x = 3,581,893.95/2,183.41
  6. Step 6: Final answer
    x = 1,640.50

Related Problems

Find fourth proportional to 1,091.71, 1,506.58 and 594.38
Half scale
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Double scale
Find fourth proportional to 2,184.41, 3,014.54 and 1,189.75
Similar ratio
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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.