Home / 2,688.08-4,033.34-2,644.36

Finding the Fourth Proportional to 2,688.08, 4,033.34 and 2,644.36

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Solution

The fourth proportional to 2,688.08, 4,033.34 and 2,644.36 is: 3,967.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.08 : 4,033.34 = 2,644.36 : x
  2. Step 2: Convert to fraction form
    2,688.08/4,033.34 = 2,644.36/x
  3. Step 3: Cross multiply
    2,688.08x = 4,033.34 × 2,644.36
  4. Step 4: Simplify right side
    2,688.08x = 10,665,602.96
  5. Step 5: Solve for x
    x = 10,665,602.96/2,688.08
  6. Step 6: Final answer
    x = 3,967.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.