Home / 4,213.73-5,814.86-2,421.21

Finding the Fourth Proportional to 4,213.73, 5,814.86 and 2,421.21

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Solution

The fourth proportional to 4,213.73, 5,814.86 and 2,421.21 is: 3,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.73 : 5,814.86 = 2,421.21 : x
  2. Step 2: Convert to fraction form
    4,213.73/5,814.86 = 2,421.21/x
  3. Step 3: Cross multiply
    4,213.73x = 5,814.86 × 2,421.21
  4. Step 4: Simplify right side
    4,213.73x = 14,078,991.54
  5. Step 5: Solve for x
    x = 14,078,991.54/4,213.73
  6. Step 6: Final answer
    x = 3,341.22

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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.