Home / 4,980.65-6,873.44-2,856.38

Finding the Fourth Proportional to 4,980.65, 6,873.44 and 2,856.38

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Solution

The fourth proportional to 4,980.65, 6,873.44 and 2,856.38 is: 3,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.65 : 6,873.44 = 2,856.38 : x
  2. Step 2: Convert to fraction form
    4,980.65/6,873.44 = 2,856.38/x
  3. Step 3: Cross multiply
    4,980.65x = 6,873.44 × 2,856.38
  4. Step 4: Simplify right side
    4,980.65x = 19,633,107.90
  5. Step 5: Solve for x
    x = 19,633,107.90/4,980.65
  6. Step 6: Final answer
    x = 3,941.88

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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.