Home / 7,389.20-10,196.92-4,245.20

Finding the Fourth Proportional to 7,389.20, 10,196.92 and 4,245.20

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Solution

The fourth proportional to 7,389.20, 10,196.92 and 4,245.20 is: 5,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.20 : 10,196.92 = 4,245.20 : x
  2. Step 2: Convert to fraction form
    7,389.20/10,196.92 = 4,245.20/x
  3. Step 3: Cross multiply
    7,389.20x = 10,196.92 × 4,245.20
  4. Step 4: Simplify right side
    7,389.20x = 43,287,964.78
  5. Step 5: Solve for x
    x = 43,287,964.78/7,389.20
  6. Step 6: Final answer
    x = 5,858.27

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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.