Home / 4,842.28-6,679.80-3,998.05

Finding the Fourth Proportional to 4,842.28, 6,679.80 and 3,998.05

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Solution

The fourth proportional to 4,842.28, 6,679.80 and 3,998.05 is: 5,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.28 : 6,679.80 = 3,998.05 : x
  2. Step 2: Convert to fraction form
    4,842.28/6,679.80 = 3,998.05/x
  3. Step 3: Cross multiply
    4,842.28x = 6,679.80 × 3,998.05
  4. Step 4: Simplify right side
    4,842.28x = 26,706,195.26
  5. Step 5: Solve for x
    x = 26,706,195.26/4,842.28
  6. Step 6: Final answer
    x = 5,515.22

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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.