Home / 4,983.96-6,880.16-2,887.68

Finding the Fourth Proportional to 4,983.96, 6,880.16 and 2,887.68

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Solution

The fourth proportional to 4,983.96, 6,880.16 and 2,887.68 is: 3,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.96 : 6,880.16 = 2,887.68 : x
  2. Step 2: Convert to fraction form
    4,983.96/6,880.16 = 2,887.68/x
  3. Step 3: Cross multiply
    4,983.96x = 6,880.16 × 2,887.68
  4. Step 4: Simplify right side
    4,983.96x = 19,867,700.43
  5. Step 5: Solve for x
    x = 19,867,700.43/4,983.96
  6. Step 6: Final answer
    x = 3,986.33

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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.