Home / 7,741.44-10,679.04-5,379.48

Finding the Fourth Proportional to 7,741.44, 10,679.04 and 5,379.48

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Solution

The fourth proportional to 7,741.44, 10,679.04 and 5,379.48 is: 7,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.44 : 10,679.04 = 5,379.48 : x
  2. Step 2: Convert to fraction form
    7,741.44/10,679.04 = 5,379.48/x
  3. Step 3: Cross multiply
    7,741.44x = 10,679.04 × 5,379.48
  4. Step 4: Simplify right side
    7,741.44x = 57,447,682.10
  5. Step 5: Solve for x
    x = 57,447,682.10/7,741.44
  6. Step 6: Final answer
    x = 7,420.80

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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.