Home / 4,989.14-6,884.78-2,863.20

Finding the Fourth Proportional to 4,989.14, 6,884.78 and 2,863.20

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Solution

The fourth proportional to 4,989.14, 6,884.78 and 2,863.20 is: 3,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.14 : 6,884.78 = 2,863.20 : x
  2. Step 2: Convert to fraction form
    4,989.14/6,884.78 = 2,863.20/x
  3. Step 3: Cross multiply
    4,989.14x = 6,884.78 × 2,863.20
  4. Step 4: Simplify right side
    4,989.14x = 19,712,503.06
  5. Step 5: Solve for x
    x = 19,712,503.06/4,989.14
  6. Step 6: Final answer
    x = 3,951.08

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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.