Home / 5,111.50-7,053.87-2,873.35

Finding the Fourth Proportional to 5,111.50, 7,053.87 and 2,873.35

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Solution

The fourth proportional to 5,111.50, 7,053.87 and 2,873.35 is: 3,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.50 : 7,053.87 = 2,873.35 : x
  2. Step 2: Convert to fraction form
    5,111.50/7,053.87 = 2,873.35/x
  3. Step 3: Cross multiply
    5,111.50x = 7,053.87 × 2,873.35
  4. Step 4: Simplify right side
    5,111.50x = 20,268,237.36
  5. Step 5: Solve for x
    x = 20,268,237.36/5,111.50
  6. Step 6: Final answer
    x = 3,965.22

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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.