Home / 5,457.43-8,185.68-2,169.64

Finding the Fourth Proportional to 5,457.43, 8,185.68 and 2,169.64

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Solution

The fourth proportional to 5,457.43, 8,185.68 and 2,169.64 is: 3,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.43 : 8,185.68 = 2,169.64 : x
  2. Step 2: Convert to fraction form
    5,457.43/8,185.68 = 2,169.64/x
  3. Step 3: Cross multiply
    5,457.43x = 8,185.68 × 2,169.64
  4. Step 4: Simplify right side
    5,457.43x = 17,759,978.76
  5. Step 5: Solve for x
    x = 17,759,978.76/5,457.43
  6. Step 6: Final answer
    x = 3,254.28

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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.