Home / 3,385.46-4,671.86-1,969.40

Finding the Fourth Proportional to 3,385.46, 4,671.86 and 1,969.40

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Solution

The fourth proportional to 3,385.46, 4,671.86 and 1,969.40 is: 2,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.46 : 4,671.86 = 1,969.40 : x
  2. Step 2: Convert to fraction form
    3,385.46/4,671.86 = 1,969.40/x
  3. Step 3: Cross multiply
    3,385.46x = 4,671.86 × 1,969.40
  4. Step 4: Simplify right side
    3,385.46x = 9,200,761.08
  5. Step 5: Solve for x
    x = 9,200,761.08/3,385.46
  6. Step 6: Final answer
    x = 2,717.73

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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.