Home / 6,453.29-8,905-3,620.27

Finding the Fourth Proportional to 6,453.29, 8,905 and 3,620.27

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Solution

The fourth proportional to 6,453.29, 8,905 and 3,620.27 is: 4,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.29 : 8,905 = 3,620.27 : x
  2. Step 2: Convert to fraction form
    6,453.29/8,905 = 3,620.27/x
  3. Step 3: Cross multiply
    6,453.29x = 8,905 × 3,620.27
  4. Step 4: Simplify right side
    6,453.29x = 32,238,504.35
  5. Step 5: Solve for x
    x = 32,238,504.35/6,453.29
  6. Step 6: Final answer
    x = 4,995.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.