Home / 5,247.26-7,235.21-3,918.72

Finding the Fourth Proportional to 5,247.26, 7,235.21 and 3,918.72

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Solution

The fourth proportional to 5,247.26, 7,235.21 and 3,918.72 is: 5,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.26 : 7,235.21 = 3,918.72 : x
  2. Step 2: Convert to fraction form
    5,247.26/7,235.21 = 3,918.72/x
  3. Step 3: Cross multiply
    5,247.26x = 7,235.21 × 3,918.72
  4. Step 4: Simplify right side
    5,247.26x = 28,352,771.93
  5. Step 5: Solve for x
    x = 28,352,771.93/5,247.26
  6. Step 6: Final answer
    x = 5,403.35

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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.