Home / 1,219.86-1,828.82-1,088.34

Finding the Fourth Proportional to 1,219.86, 1,828.82 and 1,088.34

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Solution

The fourth proportional to 1,219.86, 1,828.82 and 1,088.34 is: 1,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.86 : 1,828.82 = 1,088.34 : x
  2. Step 2: Convert to fraction form
    1,219.86/1,828.82 = 1,088.34/x
  3. Step 3: Cross multiply
    1,219.86x = 1,828.82 × 1,088.34
  4. Step 4: Simplify right side
    1,219.86x = 1,990,377.96
  5. Step 5: Solve for x
    x = 1,990,377.96/1,219.86
  6. Step 6: Final answer
    x = 1,631.64

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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.