Home / 7,119.74-10,679.31-2,189.17

Finding the Fourth Proportional to 7,119.74, 10,679.31 and 2,189.17

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Solution

The fourth proportional to 7,119.74, 10,679.31 and 2,189.17 is: 3,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.74 : 10,679.31 = 2,189.17 : x
  2. Step 2: Convert to fraction form
    7,119.74/10,679.31 = 2,189.17/x
  3. Step 3: Cross multiply
    7,119.74x = 10,679.31 × 2,189.17
  4. Step 4: Simplify right side
    7,119.74x = 23,378,838.42
  5. Step 5: Solve for x
    x = 23,378,838.42/7,119.74
  6. Step 6: Final answer
    x = 3,283.66

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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.