Home / 3,206.61-4,418.27-2,156.85

Finding the Fourth Proportional to 3,206.61, 4,418.27 and 2,156.85

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Solution

The fourth proportional to 3,206.61, 4,418.27 and 2,156.85 is: 2,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.61 : 4,418.27 = 2,156.85 : x
  2. Step 2: Convert to fraction form
    3,206.61/4,418.27 = 2,156.85/x
  3. Step 3: Cross multiply
    3,206.61x = 4,418.27 × 2,156.85
  4. Step 4: Simplify right side
    3,206.61x = 9,529,534.87
  5. Step 5: Solve for x
    x = 9,529,534.87/3,206.61
  6. Step 6: Final answer
    x = 2,971.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.