Home / 3,420.46-5,131.94-1,446.58

Finding the Fourth Proportional to 3,420.46, 5,131.94 and 1,446.58

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Solution

The fourth proportional to 3,420.46, 5,131.94 and 1,446.58 is: 2,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.46 : 5,131.94 = 1,446.58 : x
  2. Step 2: Convert to fraction form
    3,420.46/5,131.94 = 1,446.58/x
  3. Step 3: Cross multiply
    3,420.46x = 5,131.94 × 1,446.58
  4. Step 4: Simplify right side
    3,420.46x = 7,423,761.77
  5. Step 5: Solve for x
    x = 7,423,761.77/3,420.46
  6. Step 6: Final answer
    x = 2,170.40

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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.