Home / 4,981.58-6,872.90-2,884.22

Finding the Fourth Proportional to 4,981.58, 6,872.90 and 2,884.22

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Solution

The fourth proportional to 4,981.58, 6,872.90 and 2,884.22 is: 3,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.58 : 6,872.90 = 2,884.22 : x
  2. Step 2: Convert to fraction form
    4,981.58/6,872.90 = 2,884.22/x
  3. Step 3: Cross multiply
    4,981.58x = 6,872.90 × 2,884.22
  4. Step 4: Simplify right side
    4,981.58x = 19,822,955.64
  5. Step 5: Solve for x
    x = 19,822,955.64/4,981.58
  6. Step 6: Final answer
    x = 3,979.25

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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.