Home / 3,091.77-4,265.41-1,972.35

Finding the Fourth Proportional to 3,091.77, 4,265.41 and 1,972.35

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Solution

The fourth proportional to 3,091.77, 4,265.41 and 1,972.35 is: 2,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.77 : 4,265.41 = 1,972.35 : x
  2. Step 2: Convert to fraction form
    3,091.77/4,265.41 = 1,972.35/x
  3. Step 3: Cross multiply
    3,091.77x = 4,265.41 × 1,972.35
  4. Step 4: Simplify right side
    3,091.77x = 8,412,880.18
  5. Step 5: Solve for x
    x = 8,412,880.18/3,091.77
  6. Step 6: Final answer
    x = 2,721.06

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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.