Home / 5,776.20-8,658.72-3,690.36

Finding the Fourth Proportional to 5,776.20, 8,658.72 and 3,690.36

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Solution

The fourth proportional to 5,776.20, 8,658.72 and 3,690.36 is: 5,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.20 : 8,658.72 = 3,690.36 : x
  2. Step 2: Convert to fraction form
    5,776.20/8,658.72 = 3,690.36/x
  3. Step 3: Cross multiply
    5,776.20x = 8,658.72 × 3,690.36
  4. Step 4: Simplify right side
    5,776.20x = 31,953,793.94
  5. Step 5: Solve for x
    x = 31,953,793.94/5,776.20
  6. Step 6: Final answer
    x = 5,531.97

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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.