Home / 2,219.13-3,328.70-1,785.38

Finding the Fourth Proportional to 2,219.13, 3,328.70 and 1,785.38

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Solution

The fourth proportional to 2,219.13, 3,328.70 and 1,785.38 is: 2,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.13 : 3,328.70 = 1,785.38 : x
  2. Step 2: Convert to fraction form
    2,219.13/3,328.70 = 1,785.38/x
  3. Step 3: Cross multiply
    2,219.13x = 3,328.70 × 1,785.38
  4. Step 4: Simplify right side
    2,219.13x = 5,942,968.84
  5. Step 5: Solve for x
    x = 5,942,968.84/2,219.13
  6. Step 6: Final answer
    x = 2,678.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.