Home / 3,168.24-4,751.20-1,319

Finding the Fourth Proportional to 3,168.24, 4,751.20 and 1,319

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Solution

The fourth proportional to 3,168.24, 4,751.20 and 1,319 is: 1,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.24 : 4,751.20 = 1,319 : x
  2. Step 2: Convert to fraction form
    3,168.24/4,751.20 = 1,319/x
  3. Step 3: Cross multiply
    3,168.24x = 4,751.20 × 1,319
  4. Step 4: Simplify right side
    3,168.24x = 6,266,832.80
  5. Step 5: Solve for x
    x = 6,266,832.80/3,168.24
  6. Step 6: Final answer
    x = 1,978.02

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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.