Home / 6,116.28-9,180-3,780.81

Finding the Fourth Proportional to 6,116.28, 9,180 and 3,780.81

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Solution

The fourth proportional to 6,116.28, 9,180 and 3,780.81 is: 5,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,116.28 : 9,180 = 3,780.81 : x
  2. Step 2: Convert to fraction form
    6,116.28/9,180 = 3,780.81/x
  3. Step 3: Cross multiply
    6,116.28x = 9,180 × 3,780.81
  4. Step 4: Simplify right side
    6,116.28x = 34,707,835.80
  5. Step 5: Solve for x
    x = 34,707,835.80/6,116.28
  6. Step 6: Final answer
    x = 5,674.67

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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.