Home / 5,470.95-8,212.37-2,186.31

Finding the Fourth Proportional to 5,470.95, 8,212.37 and 2,186.31

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Solution

The fourth proportional to 5,470.95, 8,212.37 and 2,186.31 is: 3,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.95 : 8,212.37 = 2,186.31 : x
  2. Step 2: Convert to fraction form
    5,470.95/8,212.37 = 2,186.31/x
  3. Step 3: Cross multiply
    5,470.95x = 8,212.37 × 2,186.31
  4. Step 4: Simplify right side
    5,470.95x = 17,954,775.72
  5. Step 5: Solve for x
    x = 17,954,775.72/5,470.95
  6. Step 6: Final answer
    x = 3,281.84

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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.