Home / 3,939.46-5,434.20-2,366.62

Finding the Fourth Proportional to 3,939.46, 5,434.20 and 2,366.62

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Solution

The fourth proportional to 3,939.46, 5,434.20 and 2,366.62 is: 3,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.46 : 5,434.20 = 2,366.62 : x
  2. Step 2: Convert to fraction form
    3,939.46/5,434.20 = 2,366.62/x
  3. Step 3: Cross multiply
    3,939.46x = 5,434.20 × 2,366.62
  4. Step 4: Simplify right side
    3,939.46x = 12,860,686.40
  5. Step 5: Solve for x
    x = 12,860,686.40/3,939.46
  6. Step 6: Final answer
    x = 3,264.58

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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.