Home / 7,141.23-10,711.89-1,947.11

Finding the Fourth Proportional to 7,141.23, 10,711.89 and 1,947.11

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Solution

The fourth proportional to 7,141.23, 10,711.89 and 1,947.11 is: 2,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.23 : 10,711.89 = 1,947.11 : x
  2. Step 2: Convert to fraction form
    7,141.23/10,711.89 = 1,947.11/x
  3. Step 3: Cross multiply
    7,141.23x = 10,711.89 × 1,947.11
  4. Step 4: Simplify right side
    7,141.23x = 20,857,174.58
  5. Step 5: Solve for x
    x = 20,857,174.58/7,141.23
  6. Step 6: Final answer
    x = 2,920.67

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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.