Home / 3,861.16-5,328.36-2,092.76

Finding the Fourth Proportional to 3,861.16, 5,328.36 and 2,092.76

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Solution

The fourth proportional to 3,861.16, 5,328.36 and 2,092.76 is: 2,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.16 : 5,328.36 = 2,092.76 : x
  2. Step 2: Convert to fraction form
    3,861.16/5,328.36 = 2,092.76/x
  3. Step 3: Cross multiply
    3,861.16x = 5,328.36 × 2,092.76
  4. Step 4: Simplify right side
    3,861.16x = 11,150,978.67
  5. Step 5: Solve for x
    x = 11,150,978.67/3,861.16
  6. Step 6: Final answer
    x = 2,887.99

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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.