Home / 7,115.19-10,658.47-3,546.54

Finding the Fourth Proportional to 7,115.19, 10,658.47 and 3,546.54

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Solution

The fourth proportional to 7,115.19, 10,658.47 and 3,546.54 is: 5,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.19 : 10,658.47 = 3,546.54 : x
  2. Step 2: Convert to fraction form
    7,115.19/10,658.47 = 3,546.54/x
  3. Step 3: Cross multiply
    7,115.19x = 10,658.47 × 3,546.54
  4. Step 4: Simplify right side
    7,115.19x = 37,800,690.19
  5. Step 5: Solve for x
    x = 37,800,690.19/7,115.19
  6. Step 6: Final answer
    x = 5,312.67

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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.