Home / 3,409.31-5,106.47-2,817.61

Finding the Fourth Proportional to 3,409.31, 5,106.47 and 2,817.61

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Solution

The fourth proportional to 3,409.31, 5,106.47 and 2,817.61 is: 4,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.31 : 5,106.47 = 2,817.61 : x
  2. Step 2: Convert to fraction form
    3,409.31/5,106.47 = 2,817.61/x
  3. Step 3: Cross multiply
    3,409.31x = 5,106.47 × 2,817.61
  4. Step 4: Simplify right side
    3,409.31x = 14,388,040.94
  5. Step 5: Solve for x
    x = 14,388,040.94/3,409.31
  6. Step 6: Final answer
    x = 4,220.22

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1.5x scale

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.