Home / 7,538.94-10,403.79-4,181.55

Finding the Fourth Proportional to 7,538.94, 10,403.79 and 4,181.55

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Solution

The fourth proportional to 7,538.94, 10,403.79 and 4,181.55 is: 5,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.94 : 10,403.79 = 4,181.55 : x
  2. Step 2: Convert to fraction form
    7,538.94/10,403.79 = 4,181.55/x
  3. Step 3: Cross multiply
    7,538.94x = 10,403.79 × 4,181.55
  4. Step 4: Simplify right side
    7,538.94x = 43,503,968.07
  5. Step 5: Solve for x
    x = 43,503,968.07/7,538.94
  6. Step 6: Final answer
    x = 5,770.57

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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.