Home / 5,379.52-8,073.64-2,783.20

Finding the Fourth Proportional to 5,379.52, 8,073.64 and 2,783.20

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Solution

The fourth proportional to 5,379.52, 8,073.64 and 2,783.20 is: 4,177.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.52 : 8,073.64 = 2,783.20 : x
  2. Step 2: Convert to fraction form
    5,379.52/8,073.64 = 2,783.20/x
  3. Step 3: Cross multiply
    5,379.52x = 8,073.64 × 2,783.20
  4. Step 4: Simplify right side
    5,379.52x = 22,470,554.85
  5. Step 5: Solve for x
    x = 22,470,554.85/5,379.52
  6. Step 6: Final answer
    x = 4,177.06

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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.