Home / 2,501.21-3,450.80-1,556.45

Finding the Fourth Proportional to 2,501.21, 3,450.80 and 1,556.45

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Solution

The fourth proportional to 2,501.21, 3,450.80 and 1,556.45 is: 2,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,501.21 : 3,450.80 = 1,556.45 : x
  2. Step 2: Convert to fraction form
    2,501.21/3,450.80 = 1,556.45/x
  3. Step 3: Cross multiply
    2,501.21x = 3,450.80 × 1,556.45
  4. Step 4: Simplify right side
    2,501.21x = 5,370,997.24
  5. Step 5: Solve for x
    x = 5,370,997.24/2,501.21
  6. Step 6: Final answer
    x = 2,147.36

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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.