Home / 2,421.27-3,633.96-1,326.39

Finding the Fourth Proportional to 2,421.27, 3,633.96 and 1,326.39

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Solution

The fourth proportional to 2,421.27, 3,633.96 and 1,326.39 is: 1,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.27 : 3,633.96 = 1,326.39 : x
  2. Step 2: Convert to fraction form
    2,421.27/3,633.96 = 1,326.39/x
  3. Step 3: Cross multiply
    2,421.27x = 3,633.96 × 1,326.39
  4. Step 4: Simplify right side
    2,421.27x = 4,820,048.20
  5. Step 5: Solve for x
    x = 4,820,048.20/2,421.27
  6. Step 6: Final answer
    x = 1,990.71

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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.