Home / 4,880.13-6,734.39-2,891.58

Finding the Fourth Proportional to 4,880.13, 6,734.39 and 2,891.58

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Solution

The fourth proportional to 4,880.13, 6,734.39 and 2,891.58 is: 3,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.13 : 6,734.39 = 2,891.58 : x
  2. Step 2: Convert to fraction form
    4,880.13/6,734.39 = 2,891.58/x
  3. Step 3: Cross multiply
    4,880.13x = 6,734.39 × 2,891.58
  4. Step 4: Simplify right side
    4,880.13x = 19,473,012.98
  5. Step 5: Solve for x
    x = 19,473,012.98/4,880.13
  6. Step 6: Final answer
    x = 3,990.27

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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.