Home / 7,328.20-10,992.30-4,208.20

Finding the Fourth Proportional to 7,328.20, 10,992.30 and 4,208.20

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Solution

The fourth proportional to 7,328.20, 10,992.30 and 4,208.20 is: 6,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.20 : 10,992.30 = 4,208.20 : x
  2. Step 2: Convert to fraction form
    7,328.20/10,992.30 = 4,208.20/x
  3. Step 3: Cross multiply
    7,328.20x = 10,992.30 × 4,208.20
  4. Step 4: Simplify right side
    7,328.20x = 46,257,796.86
  5. Step 5: Solve for x
    x = 46,257,796.86/7,328.20
  6. Step 6: Final answer
    x = 6,312.30

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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.