Home / 2,858.22-3,944.26-1,679.40

Finding the Fourth Proportional to 2,858.22, 3,944.26 and 1,679.40

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Solution

The fourth proportional to 2,858.22, 3,944.26 and 1,679.40 is: 2,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.22 : 3,944.26 = 1,679.40 : x
  2. Step 2: Convert to fraction form
    2,858.22/3,944.26 = 1,679.40/x
  3. Step 3: Cross multiply
    2,858.22x = 3,944.26 × 1,679.40
  4. Step 4: Simplify right side
    2,858.22x = 6,623,990.24
  5. Step 5: Solve for x
    x = 6,623,990.24/2,858.22
  6. Step 6: Final answer
    x = 2,317.52

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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.