Home / 7,984.77-11,977.68-2,438.57

Finding the Fourth Proportional to 7,984.77, 11,977.68 and 2,438.57

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Solution

The fourth proportional to 7,984.77, 11,977.68 and 2,438.57 is: 3,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.77 : 11,977.68 = 2,438.57 : x
  2. Step 2: Convert to fraction form
    7,984.77/11,977.68 = 2,438.57/x
  3. Step 3: Cross multiply
    7,984.77x = 11,977.68 × 2,438.57
  4. Step 4: Simplify right side
    7,984.77x = 29,208,351.23
  5. Step 5: Solve for x
    x = 29,208,351.23/7,984.77
  6. Step 6: Final answer
    x = 3,658.01

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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.