Home / 1,479.87-2,219.19-1,186.44

Finding the Fourth Proportional to 1,479.87, 2,219.19 and 1,186.44

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Solution

The fourth proportional to 1,479.87, 2,219.19 and 1,186.44 is: 1,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.87 : 2,219.19 = 1,186.44 : x
  2. Step 2: Convert to fraction form
    1,479.87/2,219.19 = 1,186.44/x
  3. Step 3: Cross multiply
    1,479.87x = 2,219.19 × 1,186.44
  4. Step 4: Simplify right side
    1,479.87x = 2,632,929.85
  5. Step 5: Solve for x
    x = 2,632,929.85/1,479.87
  6. Step 6: Final answer
    x = 1,779.17

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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.