Home / 7,790.34-11,685.57-2,596.21

Finding the Fourth Proportional to 7,790.34, 11,685.57 and 2,596.21

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Solution

The fourth proportional to 7,790.34, 11,685.57 and 2,596.21 is: 3,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.34 : 11,685.57 = 2,596.21 : x
  2. Step 2: Convert to fraction form
    7,790.34/11,685.57 = 2,596.21/x
  3. Step 3: Cross multiply
    7,790.34x = 11,685.57 × 2,596.21
  4. Step 4: Simplify right side
    7,790.34x = 30,338,193.69
  5. Step 5: Solve for x
    x = 30,338,193.69/7,790.34
  6. Step 6: Final answer
    x = 3,894.33

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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.