Home / 7,485.76-11,231.88-2,556.12

Finding the Fourth Proportional to 7,485.76, 11,231.88 and 2,556.12

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Solution

The fourth proportional to 7,485.76, 11,231.88 and 2,556.12 is: 3,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.76 : 11,231.88 = 2,556.12 : x
  2. Step 2: Convert to fraction form
    7,485.76/11,231.88 = 2,556.12/x
  3. Step 3: Cross multiply
    7,485.76x = 11,231.88 × 2,556.12
  4. Step 4: Simplify right side
    7,485.76x = 28,710,033.11
  5. Step 5: Solve for x
    x = 28,710,033.11/7,485.76
  6. Step 6: Final answer
    x = 3,835.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.