Home / 4,970.28-6,858.72-3,081.36

Finding the Fourth Proportional to 4,970.28, 6,858.72 and 3,081.36

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Solution

The fourth proportional to 4,970.28, 6,858.72 and 3,081.36 is: 4,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.28 : 6,858.72 = 3,081.36 : x
  2. Step 2: Convert to fraction form
    4,970.28/6,858.72 = 3,081.36/x
  3. Step 3: Cross multiply
    4,970.28x = 6,858.72 × 3,081.36
  4. Step 4: Simplify right side
    4,970.28x = 21,134,185.46
  5. Step 5: Solve for x
    x = 21,134,185.46/4,970.28
  6. Step 6: Final answer
    x = 4,252.11

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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.