Home / 3,457.60-5,185.91-2,141.60

Finding the Fourth Proportional to 3,457.60, 5,185.91 and 2,141.60

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Solution

The fourth proportional to 3,457.60, 5,185.91 and 2,141.60 is: 3,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.60 : 5,185.91 = 2,141.60 : x
  2. Step 2: Convert to fraction form
    3,457.60/5,185.91 = 2,141.60/x
  3. Step 3: Cross multiply
    3,457.60x = 5,185.91 × 2,141.60
  4. Step 4: Simplify right side
    3,457.60x = 11,106,124.28
  5. Step 5: Solve for x
    x = 11,106,124.28/3,457.60
  6. Step 6: Final answer
    x = 3,212.09

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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.