Home / 1,556.32-2,147.68-848.18

Finding the Fourth Proportional to 1,556.32, 2,147.68 and 848.18

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Solution

The fourth proportional to 1,556.32, 2,147.68 and 848.18 is: 1,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.32 : 2,147.68 = 848.18 : x
  2. Step 2: Convert to fraction form
    1,556.32/2,147.68 = 848.18/x
  3. Step 3: Cross multiply
    1,556.32x = 2,147.68 × 848.18
  4. Step 4: Simplify right side
    1,556.32x = 1,821,625.65
  5. Step 5: Solve for x
    x = 1,821,625.65/1,556.32
  6. Step 6: Final answer
    x = 1,170.47

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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.