Home / 3,953.67-5,928.49-1,320.23

Finding the Fourth Proportional to 3,953.67, 5,928.49 and 1,320.23

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Solution

The fourth proportional to 3,953.67, 5,928.49 and 1,320.23 is: 1,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.67 : 5,928.49 = 1,320.23 : x
  2. Step 2: Convert to fraction form
    3,953.67/5,928.49 = 1,320.23/x
  3. Step 3: Cross multiply
    3,953.67x = 5,928.49 × 1,320.23
  4. Step 4: Simplify right side
    3,953.67x = 7,826,934.11
  5. Step 5: Solve for x
    x = 7,826,934.11/3,953.67
  6. Step 6: Final answer
    x = 1,979.67

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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.