Home / 2,619.08-3,613.62-1,556.58

Finding the Fourth Proportional to 2,619.08, 3,613.62 and 1,556.58

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Solution

The fourth proportional to 2,619.08, 3,613.62 and 1,556.58 is: 2,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.08 : 3,613.62 = 1,556.58 : x
  2. Step 2: Convert to fraction form
    2,619.08/3,613.62 = 1,556.58/x
  3. Step 3: Cross multiply
    2,619.08x = 3,613.62 × 1,556.58
  4. Step 4: Simplify right side
    2,619.08x = 5,624,888.62
  5. Step 5: Solve for x
    x = 5,624,888.62/2,619.08
  6. Step 6: Final answer
    x = 2,147.66

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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.