Home / 4,970.29-6,858.66-2,979.85

Finding the Fourth Proportional to 4,970.29, 6,858.66 and 2,979.85

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Solution

The fourth proportional to 4,970.29, 6,858.66 and 2,979.85 is: 4,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.29 : 6,858.66 = 2,979.85 : x
  2. Step 2: Convert to fraction form
    4,970.29/6,858.66 = 2,979.85/x
  3. Step 3: Cross multiply
    4,970.29x = 6,858.66 × 2,979.85
  4. Step 4: Simplify right side
    4,970.29x = 20,437,778.00
  5. Step 5: Solve for x
    x = 20,437,778.00/4,970.29
  6. Step 6: Final answer
    x = 4,111.99

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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.