Home / 6,389.10-9,579.55-4,195.27

Finding the Fourth Proportional to 6,389.10, 9,579.55 and 4,195.27

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Solution

The fourth proportional to 6,389.10, 9,579.55 and 4,195.27 is: 6,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.10 : 9,579.55 = 4,195.27 : x
  2. Step 2: Convert to fraction form
    6,389.10/9,579.55 = 4,195.27/x
  3. Step 3: Cross multiply
    6,389.10x = 9,579.55 × 4,195.27
  4. Step 4: Simplify right side
    6,389.10x = 40,188,798.73
  5. Step 5: Solve for x
    x = 40,188,798.73/6,389.10
  6. Step 6: Final answer
    x = 6,290.21

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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.