Home / 5,200.23-7,795.89-1,911.63

Finding the Fourth Proportional to 5,200.23, 7,795.89 and 1,911.63

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Solution

The fourth proportional to 5,200.23, 7,795.89 and 1,911.63 is: 2,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.23 : 7,795.89 = 1,911.63 : x
  2. Step 2: Convert to fraction form
    5,200.23/7,795.89 = 1,911.63/x
  3. Step 3: Cross multiply
    5,200.23x = 7,795.89 × 1,911.63
  4. Step 4: Simplify right side
    5,200.23x = 14,902,857.20
  5. Step 5: Solve for x
    x = 14,902,857.20/5,200.23
  6. Step 6: Final answer
    x = 2,865.81

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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.