Home / 7,286.48-10,928.40-2,091.12

Finding the Fourth Proportional to 7,286.48, 10,928.40 and 2,091.12

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Solution

The fourth proportional to 7,286.48, 10,928.40 and 2,091.12 is: 3,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.48 : 10,928.40 = 2,091.12 : x
  2. Step 2: Convert to fraction form
    7,286.48/10,928.40 = 2,091.12/x
  3. Step 3: Cross multiply
    7,286.48x = 10,928.40 × 2,091.12
  4. Step 4: Simplify right side
    7,286.48x = 22,852,595.81
  5. Step 5: Solve for x
    x = 22,852,595.81/7,286.48
  6. Step 6: Final answer
    x = 3,136.30

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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.