Home / 2,840.22-3,917.56-1,719.22

Finding the Fourth Proportional to 2,840.22, 3,917.56 and 1,719.22

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Solution

The fourth proportional to 2,840.22, 3,917.56 and 1,719.22 is: 2,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.22 : 3,917.56 = 1,719.22 : x
  2. Step 2: Convert to fraction form
    2,840.22/3,917.56 = 1,719.22/x
  3. Step 3: Cross multiply
    2,840.22x = 3,917.56 × 1,719.22
  4. Step 4: Simplify right side
    2,840.22x = 6,735,147.50
  5. Step 5: Solve for x
    x = 6,735,147.50/2,840.22
  6. Step 6: Final answer
    x = 2,371.35

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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.