Home / 7,118.24-10,675.71-2,119.59

Finding the Fourth Proportional to 7,118.24, 10,675.71 and 2,119.59

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Solution

The fourth proportional to 7,118.24, 10,675.71 and 2,119.59 is: 3,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.24 : 10,675.71 = 2,119.59 : x
  2. Step 2: Convert to fraction form
    7,118.24/10,675.71 = 2,119.59/x
  3. Step 3: Cross multiply
    7,118.24x = 10,675.71 × 2,119.59
  4. Step 4: Simplify right side
    7,118.24x = 22,628,128.16
  5. Step 5: Solve for x
    x = 22,628,128.16/7,118.24
  6. Step 6: Final answer
    x = 3,178.90

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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.