Home / 5,148.24-7,721.28-1,684.68

Finding the Fourth Proportional to 5,148.24, 7,721.28 and 1,684.68

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Solution

The fourth proportional to 5,148.24, 7,721.28 and 1,684.68 is: 2,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.24 : 7,721.28 = 1,684.68 : x
  2. Step 2: Convert to fraction form
    5,148.24/7,721.28 = 1,684.68/x
  3. Step 3: Cross multiply
    5,148.24x = 7,721.28 × 1,684.68
  4. Step 4: Simplify right side
    5,148.24x = 13,007,885.99
  5. Step 5: Solve for x
    x = 13,007,885.99/5,148.24
  6. Step 6: Final answer
    x = 2,526.67

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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.