Home / 7,681.75-11,525.40-2,684.86

Finding the Fourth Proportional to 7,681.75, 11,525.40 and 2,684.86

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Solution

The fourth proportional to 7,681.75, 11,525.40 and 2,684.86 is: 4,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.75 : 11,525.40 = 2,684.86 : x
  2. Step 2: Convert to fraction form
    7,681.75/11,525.40 = 2,684.86/x
  3. Step 3: Cross multiply
    7,681.75x = 11,525.40 × 2,684.86
  4. Step 4: Simplify right side
    7,681.75x = 30,944,014.39
  5. Step 5: Solve for x
    x = 30,944,014.39/7,681.75
  6. Step 6: Final answer
    x = 4,028.25

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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.