Home / 5,284.24-7,940.70-2,820.83

Finding the Fourth Proportional to 5,284.24, 7,940.70 and 2,820.83

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Solution

The fourth proportional to 5,284.24, 7,940.70 and 2,820.83 is: 4,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.24 : 7,940.70 = 2,820.83 : x
  2. Step 2: Convert to fraction form
    5,284.24/7,940.70 = 2,820.83/x
  3. Step 3: Cross multiply
    5,284.24x = 7,940.70 × 2,820.83
  4. Step 4: Simplify right side
    5,284.24x = 22,399,325.08
  5. Step 5: Solve for x
    x = 22,399,325.08/5,284.24
  6. Step 6: Final answer
    x = 4,238.89

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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.