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Finding the Fourth Proportional to 5,658.50, 8,487.95 and 1,960.85

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Solution

The fourth proportional to 5,658.50, 8,487.95 and 1,960.85 is: 2,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.50 : 8,487.95 = 1,960.85 : x
  2. Step 2: Convert to fraction form
    5,658.50/8,487.95 = 1,960.85/x
  3. Step 3: Cross multiply
    5,658.50x = 8,487.95 × 1,960.85
  4. Step 4: Simplify right side
    5,658.50x = 16,643,596.76
  5. Step 5: Solve for x
    x = 16,643,596.76/5,658.50
  6. Step 6: Final answer
    x = 2,941.34

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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.