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Finding the Fourth Proportional to 5,690.94, 8,525.47 and 3,218.42

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Solution

The fourth proportional to 5,690.94, 8,525.47 and 3,218.42 is: 4,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.94 : 8,525.47 = 3,218.42 : x
  2. Step 2: Convert to fraction form
    5,690.94/8,525.47 = 3,218.42/x
  3. Step 3: Cross multiply
    5,690.94x = 8,525.47 × 3,218.42
  4. Step 4: Simplify right side
    5,690.94x = 27,438,543.16
  5. Step 5: Solve for x
    x = 27,438,543.16/5,690.94
  6. Step 6: Final answer
    x = 4,821.44

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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.