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Finding the Fourth Proportional to 6,480.21, 8,930.21 and 4,709.01

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Solution

The fourth proportional to 6,480.21, 8,930.21 and 4,709.01 is: 6,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.21 : 8,930.21 = 4,709.01 : x
  2. Step 2: Convert to fraction form
    6,480.21/8,930.21 = 4,709.01/x
  3. Step 3: Cross multiply
    6,480.21x = 8,930.21 × 4,709.01
  4. Step 4: Simplify right side
    6,480.21x = 42,052,424.65
  5. Step 5: Solve for x
    x = 42,052,424.65/6,480.21
  6. Step 6: Final answer
    x = 6,489.36

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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.