Home / 5,457.07-8,185.70-2,125.54

Finding the Fourth Proportional to 5,457.07, 8,185.70 and 2,125.54

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Solution

The fourth proportional to 5,457.07, 8,185.70 and 2,125.54 is: 3,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.07 : 8,185.70 = 2,125.54 : x
  2. Step 2: Convert to fraction form
    5,457.07/8,185.70 = 2,125.54/x
  3. Step 3: Cross multiply
    5,457.07x = 8,185.70 × 2,125.54
  4. Step 4: Simplify right side
    5,457.07x = 17,398,991.85
  5. Step 5: Solve for x
    x = 17,398,991.85/5,457.07
  6. Step 6: Final answer
    x = 3,188.34

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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.