Home / 3,288.78-4,539.03-2,111.10

Finding the Fourth Proportional to 3,288.78, 4,539.03 and 2,111.10

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Solution

The fourth proportional to 3,288.78, 4,539.03 and 2,111.10 is: 2,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.78 : 4,539.03 = 2,111.10 : x
  2. Step 2: Convert to fraction form
    3,288.78/4,539.03 = 2,111.10/x
  3. Step 3: Cross multiply
    3,288.78x = 4,539.03 × 2,111.10
  4. Step 4: Simplify right side
    3,288.78x = 9,582,346.23
  5. Step 5: Solve for x
    x = 9,582,346.23/3,288.78
  6. Step 6: Final answer
    x = 2,913.65

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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.