Home / 5,420.82-8,131.03-2,298.81

Finding the Fourth Proportional to 5,420.82, 8,131.03 and 2,298.81

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Solution

The fourth proportional to 5,420.82, 8,131.03 and 2,298.81 is: 3,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.82 : 8,131.03 = 2,298.81 : x
  2. Step 2: Convert to fraction form
    5,420.82/8,131.03 = 2,298.81/x
  3. Step 3: Cross multiply
    5,420.82x = 8,131.03 × 2,298.81
  4. Step 4: Simplify right side
    5,420.82x = 18,691,693.07
  5. Step 5: Solve for x
    x = 18,691,693.07/5,420.82
  6. Step 6: Final answer
    x = 3,448.13

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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.