Home / 2,219.85-3,063.93-1,335.48

Finding the Fourth Proportional to 2,219.85, 3,063.93 and 1,335.48

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Solution

The fourth proportional to 2,219.85, 3,063.93 and 1,335.48 is: 1,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.85 : 3,063.93 = 1,335.48 : x
  2. Step 2: Convert to fraction form
    2,219.85/3,063.93 = 1,335.48/x
  3. Step 3: Cross multiply
    2,219.85x = 3,063.93 × 1,335.48
  4. Step 4: Simplify right side
    2,219.85x = 4,091,817.24
  5. Step 5: Solve for x
    x = 4,091,817.24/2,219.85
  6. Step 6: Final answer
    x = 1,843.29

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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.