Home / 7,621.30-11,434.26-3,621.71

Finding the Fourth Proportional to 7,621.30, 11,434.26 and 3,621.71

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Solution

The fourth proportional to 7,621.30, 11,434.26 and 3,621.71 is: 5,433.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.30 : 11,434.26 = 3,621.71 : x
  2. Step 2: Convert to fraction form
    7,621.30/11,434.26 = 3,621.71/x
  3. Step 3: Cross multiply
    7,621.30x = 11,434.26 × 3,621.71
  4. Step 4: Simplify right side
    7,621.30x = 41,411,573.78
  5. Step 5: Solve for x
    x = 41,411,573.78/7,621.30
  6. Step 6: Final answer
    x = 5,433.67

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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.