Home / 5,740.07-7,921.70-3,187.96

Finding the Fourth Proportional to 5,740.07, 7,921.70 and 3,187.96

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Solution

The fourth proportional to 5,740.07, 7,921.70 and 3,187.96 is: 4,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.07 : 7,921.70 = 3,187.96 : x
  2. Step 2: Convert to fraction form
    5,740.07/7,921.70 = 3,187.96/x
  3. Step 3: Cross multiply
    5,740.07x = 7,921.70 × 3,187.96
  4. Step 4: Simplify right side
    5,740.07x = 25,254,038.94
  5. Step 5: Solve for x
    x = 25,254,038.94/5,740.07
  6. Step 6: Final answer
    x = 4,399.61

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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.