Home / 1,556.58-2,336.40-1,213.65

Finding the Fourth Proportional to 1,556.58, 2,336.40 and 1,213.65

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Solution

The fourth proportional to 1,556.58, 2,336.40 and 1,213.65 is: 1,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.58 : 2,336.40 = 1,213.65 : x
  2. Step 2: Convert to fraction form
    1,556.58/2,336.40 = 1,213.65/x
  3. Step 3: Cross multiply
    1,556.58x = 2,336.40 × 1,213.65
  4. Step 4: Simplify right side
    1,556.58x = 2,835,571.86
  5. Step 5: Solve for x
    x = 2,835,571.86/1,556.58
  6. Step 6: Final answer
    x = 1,821.66

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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.