Home / 2,164.38-3,237.66-1,615.20

Finding the Fourth Proportional to 2,164.38, 3,237.66 and 1,615.20

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Solution

The fourth proportional to 2,164.38, 3,237.66 and 1,615.20 is: 2,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.38 : 3,237.66 = 1,615.20 : x
  2. Step 2: Convert to fraction form
    2,164.38/3,237.66 = 1,615.20/x
  3. Step 3: Cross multiply
    2,164.38x = 3,237.66 × 1,615.20
  4. Step 4: Simplify right side
    2,164.38x = 5,229,468.43
  5. Step 5: Solve for x
    x = 5,229,468.43/2,164.38
  6. Step 6: Final answer
    x = 2,416.15

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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.