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Finding the Fourth Proportional to 5,959.78, 8,262.17 and 5,643.80

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Solution

The fourth proportional to 5,959.78, 8,262.17 and 5,643.80 is: 7,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,959.78 : 8,262.17 = 5,643.80 : x
  2. Step 2: Convert to fraction form
    5,959.78/8,262.17 = 5,643.80/x
  3. Step 3: Cross multiply
    5,959.78x = 8,262.17 × 5,643.80
  4. Step 4: Simplify right side
    5,959.78x = 46,630,035.05
  5. Step 5: Solve for x
    x = 46,630,035.05/5,959.78
  6. Step 6: Final answer
    x = 7,824.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.