Home / 5,457.05-8,185.59-2,170.12

Finding the Fourth Proportional to 5,457.05, 8,185.59 and 2,170.12

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Solution

The fourth proportional to 5,457.05, 8,185.59 and 2,170.12 is: 3,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.05 : 8,185.59 = 2,170.12 : x
  2. Step 2: Convert to fraction form
    5,457.05/8,185.59 = 2,170.12/x
  3. Step 3: Cross multiply
    5,457.05x = 8,185.59 × 2,170.12
  4. Step 4: Simplify right side
    5,457.05x = 17,763,712.57
  5. Step 5: Solve for x
    x = 17,763,712.57/5,457.05
  6. Step 6: Final answer
    x = 3,255.19

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Double scale
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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.