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Finding the Fourth Proportional to 7,405.65, 11,098.61 and 3,651.69

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Solution

The fourth proportional to 7,405.65, 11,098.61 and 3,651.69 is: 5,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.65 : 11,098.61 = 3,651.69 : x
  2. Step 2: Convert to fraction form
    7,405.65/11,098.61 = 3,651.69/x
  3. Step 3: Cross multiply
    7,405.65x = 11,098.61 × 3,651.69
  4. Step 4: Simplify right side
    7,405.65x = 40,528,683.15
  5. Step 5: Solve for x
    x = 40,528,683.15/7,405.65
  6. Step 6: Final answer
    x = 5,472.67

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1.5x scale

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.