Home / 5,118.99-7,063.77-2,881.23

Finding the Fourth Proportional to 5,118.99, 7,063.77 and 2,881.23

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Solution

The fourth proportional to 5,118.99, 7,063.77 and 2,881.23 is: 3,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.99 : 7,063.77 = 2,881.23 : x
  2. Step 2: Convert to fraction form
    5,118.99/7,063.77 = 2,881.23/x
  3. Step 3: Cross multiply
    5,118.99x = 7,063.77 × 2,881.23
  4. Step 4: Simplify right side
    5,118.99x = 20,352,346.04
  5. Step 5: Solve for x
    x = 20,352,346.04/5,118.99
  6. Step 6: Final answer
    x = 3,975.85

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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.