Home / 1,632.44-2,250.78-1,421.84

Finding the Fourth Proportional to 1,632.44, 2,250.78 and 1,421.84

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Solution

The fourth proportional to 1,632.44, 2,250.78 and 1,421.84 is: 1,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.44 : 2,250.78 = 1,421.84 : x
  2. Step 2: Convert to fraction form
    1,632.44/2,250.78 = 1,421.84/x
  3. Step 3: Cross multiply
    1,632.44x = 2,250.78 × 1,421.84
  4. Step 4: Simplify right side
    1,632.44x = 3,200,249.04
  5. Step 5: Solve for x
    x = 3,200,249.04/1,632.44
  6. Step 6: Final answer
    x = 1,960.41

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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.