Home / 3,010.40-4,156.26-1,891.88

Finding the Fourth Proportional to 3,010.40, 4,156.26 and 1,891.88

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Solution

The fourth proportional to 3,010.40, 4,156.26 and 1,891.88 is: 2,611.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.40 : 4,156.26 = 1,891.88 : x
  2. Step 2: Convert to fraction form
    3,010.40/4,156.26 = 1,891.88/x
  3. Step 3: Cross multiply
    3,010.40x = 4,156.26 × 1,891.88
  4. Step 4: Simplify right side
    3,010.40x = 7,863,145.17
  5. Step 5: Solve for x
    x = 7,863,145.17/3,010.40
  6. Step 6: Final answer
    x = 2,611.99

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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.