Home / 7,119.24-10,677.21-2,120.59

Finding the Fourth Proportional to 7,119.24, 10,677.21 and 2,120.59

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Solution

The fourth proportional to 7,119.24, 10,677.21 and 2,120.59 is: 3,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.24 : 10,677.21 = 2,120.59 : x
  2. Step 2: Convert to fraction form
    7,119.24/10,677.21 = 2,120.59/x
  3. Step 3: Cross multiply
    7,119.24x = 10,677.21 × 2,120.59
  4. Step 4: Simplify right side
    7,119.24x = 22,641,984.75
  5. Step 5: Solve for x
    x = 22,641,984.75/7,119.24
  6. Step 6: Final answer
    x = 3,180.39

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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.