Home / 2,287.20-3,426.75-2,211.06

Finding the Fourth Proportional to 2,287.20, 3,426.75 and 2,211.06

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Solution

The fourth proportional to 2,287.20, 3,426.75 and 2,211.06 is: 3,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.20 : 3,426.75 = 2,211.06 : x
  2. Step 2: Convert to fraction form
    2,287.20/3,426.75 = 2,211.06/x
  3. Step 3: Cross multiply
    2,287.20x = 3,426.75 × 2,211.06
  4. Step 4: Simplify right side
    2,287.20x = 7,576,749.86
  5. Step 5: Solve for x
    x = 7,576,749.86/2,287.20
  6. Step 6: Final answer
    x = 3,312.67

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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.