Home / 4,980.39-6,872.96-2,856.00

Finding the Fourth Proportional to 4,980.39, 6,872.96 and 2,856.00

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Solution

The fourth proportional to 4,980.39, 6,872.96 and 2,856.00 is: 3,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.39 : 6,872.96 = 2,856.00 : x
  2. Step 2: Convert to fraction form
    4,980.39/6,872.96 = 2,856.00/x
  3. Step 3: Cross multiply
    4,980.39x = 6,872.96 × 2,856.00
  4. Step 4: Simplify right side
    4,980.39x = 19,629,191.36
  5. Step 5: Solve for x
    x = 19,629,191.36/4,980.39
  6. Step 6: Final answer
    x = 3,941.30

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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.