Home / 2,981.08-4,114.62-2,097.20

Finding the Fourth Proportional to 2,981.08, 4,114.62 and 2,097.20

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Solution

The fourth proportional to 2,981.08, 4,114.62 and 2,097.20 is: 2,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.08 : 4,114.62 = 2,097.20 : x
  2. Step 2: Convert to fraction form
    2,981.08/4,114.62 = 2,097.20/x
  3. Step 3: Cross multiply
    2,981.08x = 4,114.62 × 2,097.20
  4. Step 4: Simplify right side
    2,981.08x = 8,629,181.06
  5. Step 5: Solve for x
    x = 8,629,181.06/2,981.08
  6. Step 6: Final answer
    x = 2,894.65

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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.