Home / 2,154.20-3,242.23-1,609.27

Finding the Fourth Proportional to 2,154.20, 3,242.23 and 1,609.27

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Solution

The fourth proportional to 2,154.20, 3,242.23 and 1,609.27 is: 2,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.20 : 3,242.23 = 1,609.27 : x
  2. Step 2: Convert to fraction form
    2,154.20/3,242.23 = 1,609.27/x
  3. Step 3: Cross multiply
    2,154.20x = 3,242.23 × 1,609.27
  4. Step 4: Simplify right side
    2,154.20x = 5,217,611.34
  5. Step 5: Solve for x
    x = 5,217,611.34/2,154.20
  6. Step 6: Final answer
    x = 2,422.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.