Home / 2,688.05-4,032.09-740.36

Finding the Fourth Proportional to 2,688.05, 4,032.09 and 740.36

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Solution

The fourth proportional to 2,688.05, 4,032.09 and 740.36 is: 1,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.05 : 4,032.09 = 740.36 : x
  2. Step 2: Convert to fraction form
    2,688.05/4,032.09 = 740.36/x
  3. Step 3: Cross multiply
    2,688.05x = 4,032.09 × 740.36
  4. Step 4: Simplify right side
    2,688.05x = 2,985,198.15
  5. Step 5: Solve for x
    x = 2,985,198.15/2,688.05
  6. Step 6: Final answer
    x = 1,110.54

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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.