Home / 5,147.16-7,721.55-3,395.67

Finding the Fourth Proportional to 5,147.16, 7,721.55 and 3,395.67

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Solution

The fourth proportional to 5,147.16, 7,721.55 and 3,395.67 is: 5,094.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.16 : 7,721.55 = 3,395.67 : x
  2. Step 2: Convert to fraction form
    5,147.16/7,721.55 = 3,395.67/x
  3. Step 3: Cross multiply
    5,147.16x = 7,721.55 × 3,395.67
  4. Step 4: Simplify right side
    5,147.16x = 26,219,835.69
  5. Step 5: Solve for x
    x = 26,219,835.69/5,147.16
  6. Step 6: Final answer
    x = 5,094.04

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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.