Home / 3,994.10-5,511.71-2,816.76

Finding the Fourth Proportional to 3,994.10, 5,511.71 and 2,816.76

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Solution

The fourth proportional to 3,994.10, 5,511.71 and 2,816.76 is: 3,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.10 : 5,511.71 = 2,816.76 : x
  2. Step 2: Convert to fraction form
    3,994.10/5,511.71 = 2,816.76/x
  3. Step 3: Cross multiply
    3,994.10x = 5,511.71 × 2,816.76
  4. Step 4: Simplify right side
    3,994.10x = 15,525,164.26
  5. Step 5: Solve for x
    x = 15,525,164.26/3,994.10
  6. Step 6: Final answer
    x = 3,887.02

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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.