Home / 5,118.11-7,055.47-3,621.41

Finding the Fourth Proportional to 5,118.11, 7,055.47 and 3,621.41

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Solution

The fourth proportional to 5,118.11, 7,055.47 and 3,621.41 is: 4,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.11 : 7,055.47 = 3,621.41 : x
  2. Step 2: Convert to fraction form
    5,118.11/7,055.47 = 3,621.41/x
  3. Step 3: Cross multiply
    5,118.11x = 7,055.47 × 3,621.41
  4. Step 4: Simplify right side
    5,118.11x = 25,550,749.61
  5. Step 5: Solve for x
    x = 25,550,749.61/5,118.11
  6. Step 6: Final answer
    x = 4,992.22

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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.