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Finding the Fourth Proportional to 5,293.42, 7,940.74 and 1,782.22

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Solution

The fourth proportional to 5,293.42, 7,940.74 and 1,782.22 is: 2,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,293.42 : 7,940.74 = 1,782.22 : x
  2. Step 2: Convert to fraction form
    5,293.42/7,940.74 = 1,782.22/x
  3. Step 3: Cross multiply
    5,293.42x = 7,940.74 × 1,782.22
  4. Step 4: Simplify right side
    5,293.42x = 14,152,151.93
  5. Step 5: Solve for x
    x = 14,152,151.93/5,293.42
  6. Step 6: Final answer
    x = 2,673.54

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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.