Home / 2,261.72-3,390.75-2,132.93

Finding the Fourth Proportional to 2,261.72, 3,390.75 and 2,132.93

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Solution

The fourth proportional to 2,261.72, 3,390.75 and 2,132.93 is: 3,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.72 : 3,390.75 = 2,132.93 : x
  2. Step 2: Convert to fraction form
    2,261.72/3,390.75 = 2,132.93/x
  3. Step 3: Cross multiply
    2,261.72x = 3,390.75 × 2,132.93
  4. Step 4: Simplify right side
    2,261.72x = 7,232,215.44
  5. Step 5: Solve for x
    x = 7,232,215.44/2,261.72
  6. Step 6: Final answer
    x = 3,197.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.