Home / 4,219.82-5,816.73-2,891.24

Finding the Fourth Proportional to 4,219.82, 5,816.73 and 2,891.24

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Solution

The fourth proportional to 4,219.82, 5,816.73 and 2,891.24 is: 3,985.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.82 : 5,816.73 = 2,891.24 : x
  2. Step 2: Convert to fraction form
    4,219.82/5,816.73 = 2,891.24/x
  3. Step 3: Cross multiply
    4,219.82x = 5,816.73 × 2,891.24
  4. Step 4: Simplify right side
    4,219.82x = 16,817,562.45
  5. Step 5: Solve for x
    x = 16,817,562.45/4,219.82
  6. Step 6: Final answer
    x = 3,985.37

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Half scale
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Double scale
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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.