Home / 3,975.41-5,485.19-2,403.47

Finding the Fourth Proportional to 3,975.41, 5,485.19 and 2,403.47

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Solution

The fourth proportional to 3,975.41, 5,485.19 and 2,403.47 is: 3,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.41 : 5,485.19 = 2,403.47 : x
  2. Step 2: Convert to fraction form
    3,975.41/5,485.19 = 2,403.47/x
  3. Step 3: Cross multiply
    3,975.41x = 5,485.19 × 2,403.47
  4. Step 4: Simplify right side
    3,975.41x = 13,183,491.30
  5. Step 5: Solve for x
    x = 13,183,491.30/3,975.41
  6. Step 6: Final answer
    x = 3,316.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.