Home / 2,815.01-3,884.69-1,556.15

Finding the Fourth Proportional to 2,815.01, 3,884.69 and 1,556.15

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Solution

The fourth proportional to 2,815.01, 3,884.69 and 1,556.15 is: 2,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.01 : 3,884.69 = 1,556.15 : x
  2. Step 2: Convert to fraction form
    2,815.01/3,884.69 = 1,556.15/x
  3. Step 3: Cross multiply
    2,815.01x = 3,884.69 × 1,556.15
  4. Step 4: Simplify right side
    2,815.01x = 6,045,133.14
  5. Step 5: Solve for x
    x = 6,045,133.14/2,815.01
  6. Step 6: Final answer
    x = 2,147.47

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1.5x scale

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.