Home / 4,778.17-7,167.26-2,806.81

Finding the Fourth Proportional to 4,778.17, 7,167.26 and 2,806.81

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Solution

The fourth proportional to 4,778.17, 7,167.26 and 2,806.81 is: 4,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.17 : 7,167.26 = 2,806.81 : x
  2. Step 2: Convert to fraction form
    4,778.17/7,167.26 = 2,806.81/x
  3. Step 3: Cross multiply
    4,778.17x = 7,167.26 × 2,806.81
  4. Step 4: Simplify right side
    4,778.17x = 20,117,137.04
  5. Step 5: Solve for x
    x = 20,117,137.04/4,778.17
  6. Step 6: Final answer
    x = 4,210.22

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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.