Home / 3,810.54-5,220.32-3,668.40

Finding the Fourth Proportional to 3,810.54, 5,220.32 and 3,668.40

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Solution

The fourth proportional to 3,810.54, 5,220.32 and 3,668.40 is: 5,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.54 : 5,220.32 = 3,668.40 : x
  2. Step 2: Convert to fraction form
    3,810.54/5,220.32 = 3,668.40/x
  3. Step 3: Cross multiply
    3,810.54x = 5,220.32 × 3,668.40
  4. Step 4: Simplify right side
    3,810.54x = 19,150,203.55
  5. Step 5: Solve for x
    x = 19,150,203.55/3,810.54
  6. Step 6: Final answer
    x = 5,025.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.