Home / 4,968-6,854.40-2,871.36

Finding the Fourth Proportional to 4,968, 6,854.40 and 2,871.36

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Solution

The fourth proportional to 4,968, 6,854.40 and 2,871.36 is: 3,961.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,968 : 6,854.40 = 2,871.36 : x
  2. Step 2: Convert to fraction form
    4,968/6,854.40 = 2,871.36/x
  3. Step 3: Cross multiply
    4,968x = 6,854.40 × 2,871.36
  4. Step 4: Simplify right side
    4,968x = 19,681,449.98
  5. Step 5: Solve for x
    x = 19,681,449.98/4,968
  6. Step 6: Final answer
    x = 3,961.64

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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.