Home / 4,121.50-6,166.75-2,891.31

Finding the Fourth Proportional to 4,121.50, 6,166.75 and 2,891.31

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Solution

The fourth proportional to 4,121.50, 6,166.75 and 2,891.31 is: 4,326.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.50 : 6,166.75 = 2,891.31 : x
  2. Step 2: Convert to fraction form
    4,121.50/6,166.75 = 2,891.31/x
  3. Step 3: Cross multiply
    4,121.50x = 6,166.75 × 2,891.31
  4. Step 4: Simplify right side
    4,121.50x = 17,829,985.94
  5. Step 5: Solve for x
    x = 17,829,985.94/4,121.50
  6. Step 6: Final answer
    x = 4,326.09

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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.