Home / 2,215.26-3,057.07-1,271.09

Finding the Fourth Proportional to 2,215.26, 3,057.07 and 1,271.09

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Solution

The fourth proportional to 2,215.26, 3,057.07 and 1,271.09 is: 1,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.26 : 3,057.07 = 1,271.09 : x
  2. Step 2: Convert to fraction form
    2,215.26/3,057.07 = 1,271.09/x
  3. Step 3: Cross multiply
    2,215.26x = 3,057.07 × 1,271.09
  4. Step 4: Simplify right side
    2,215.26x = 3,885,811.11
  5. Step 5: Solve for x
    x = 3,885,811.11/2,215.26
  6. Step 6: Final answer
    x = 1,754.11

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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.