Home / 3,645.36-5,457.60-2,771.42

Finding the Fourth Proportional to 3,645.36, 5,457.60 and 2,771.42

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Solution

The fourth proportional to 3,645.36, 5,457.60 and 2,771.42 is: 4,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.36 : 5,457.60 = 2,771.42 : x
  2. Step 2: Convert to fraction form
    3,645.36/5,457.60 = 2,771.42/x
  3. Step 3: Cross multiply
    3,645.36x = 5,457.60 × 2,771.42
  4. Step 4: Simplify right side
    3,645.36x = 15,125,274.50
  5. Step 5: Solve for x
    x = 15,125,274.50/3,645.36
  6. Step 6: Final answer
    x = 4,149.19

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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.