Home / 4,968.36-6,856.70-2,978.88

Finding the Fourth Proportional to 4,968.36, 6,856.70 and 2,978.88

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Solution

The fourth proportional to 4,968.36, 6,856.70 and 2,978.88 is: 4,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,968.36 : 6,856.70 = 2,978.88 : x
  2. Step 2: Convert to fraction form
    4,968.36/6,856.70 = 2,978.88/x
  3. Step 3: Cross multiply
    4,968.36x = 6,856.70 × 2,978.88
  4. Step 4: Simplify right side
    4,968.36x = 20,425,262.65
  5. Step 5: Solve for x
    x = 20,425,262.65/4,968.36
  6. Step 6: Final answer
    x = 4,111.07

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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.