Home / 2,219.54-3,063.14-1,225.01

Finding the Fourth Proportional to 2,219.54, 3,063.14 and 1,225.01

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Solution

The fourth proportional to 2,219.54, 3,063.14 and 1,225.01 is: 1,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.54 : 3,063.14 = 1,225.01 : x
  2. Step 2: Convert to fraction form
    2,219.54/3,063.14 = 1,225.01/x
  3. Step 3: Cross multiply
    2,219.54x = 3,063.14 × 1,225.01
  4. Step 4: Simplify right side
    2,219.54x = 3,752,383.26
  5. Step 5: Solve for x
    x = 3,752,383.26/2,219.54
  6. Step 6: Final answer
    x = 1,690.62

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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.