Home / 3,856.49-5,321.93-2,088.05

Finding the Fourth Proportional to 3,856.49, 5,321.93 and 2,088.05

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Solution

The fourth proportional to 3,856.49, 5,321.93 and 2,088.05 is: 2,881.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.49 : 5,321.93 = 2,088.05 : x
  2. Step 2: Convert to fraction form
    3,856.49/5,321.93 = 2,088.05/x
  3. Step 3: Cross multiply
    3,856.49x = 5,321.93 × 2,088.05
  4. Step 4: Simplify right side
    3,856.49x = 11,112,455.94
  5. Step 5: Solve for x
    x = 11,112,455.94/3,856.49
  6. Step 6: Final answer
    x = 2,881.49

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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.