Home / 2,219.22-3,062.64-1,335.30

Finding the Fourth Proportional to 2,219.22, 3,062.64 and 1,335.30

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Solution

The fourth proportional to 2,219.22, 3,062.64 and 1,335.30 is: 1,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.22 : 3,062.64 = 1,335.30 : x
  2. Step 2: Convert to fraction form
    2,219.22/3,062.64 = 1,335.30/x
  3. Step 3: Cross multiply
    2,219.22x = 3,062.64 × 1,335.30
  4. Step 4: Simplify right side
    2,219.22x = 4,089,543.19
  5. Step 5: Solve for x
    x = 4,089,543.19/2,219.22
  6. Step 6: Final answer
    x = 1,842.78

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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.