Home / 3,856.70-5,322.26-2,088.30

Finding the Fourth Proportional to 3,856.70, 5,322.26 and 2,088.30

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Solution

The fourth proportional to 3,856.70, 5,322.26 and 2,088.30 is: 2,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.70 : 5,322.26 = 2,088.30 : x
  2. Step 2: Convert to fraction form
    3,856.70/5,322.26 = 2,088.30/x
  3. Step 3: Cross multiply
    3,856.70x = 5,322.26 × 2,088.30
  4. Step 4: Simplify right side
    3,856.70x = 11,114,485.77
  5. Step 5: Solve for x
    x = 11,114,485.77/3,856.70
  6. Step 6: Final answer
    x = 2,881.87

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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.