Home / 4,980.93-6,872.63-2,857.14

Finding the Fourth Proportional to 4,980.93, 6,872.63 and 2,857.14

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Solution

The fourth proportional to 4,980.93, 6,872.63 and 2,857.14 is: 3,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.93 : 6,872.63 = 2,857.14 : x
  2. Step 2: Convert to fraction form
    4,980.93/6,872.63 = 2,857.14/x
  3. Step 3: Cross multiply
    4,980.93x = 6,872.63 × 2,857.14
  4. Step 4: Simplify right side
    4,980.93x = 19,636,066.08
  5. Step 5: Solve for x
    x = 19,636,066.08/4,980.93
  6. Step 6: Final answer
    x = 3,942.25

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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.