Home / 3,381.91-4,665.70-1,965.35

Finding the Fourth Proportional to 3,381.91, 4,665.70 and 1,965.35

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Solution

The fourth proportional to 3,381.91, 4,665.70 and 1,965.35 is: 2,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.91 : 4,665.70 = 1,965.35 : x
  2. Step 2: Convert to fraction form
    3,381.91/4,665.70 = 1,965.35/x
  3. Step 3: Cross multiply
    3,381.91x = 4,665.70 × 1,965.35
  4. Step 4: Simplify right side
    3,381.91x = 9,169,733.50
  5. Step 5: Solve for x
    x = 9,169,733.50/3,381.91
  6. Step 6: Final answer
    x = 2,711.41

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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.