Home / 2,127.90-3,190.23-1,910.82

Finding the Fourth Proportional to 2,127.90, 3,190.23 and 1,910.82

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Solution

The fourth proportional to 2,127.90, 3,190.23 and 1,910.82 is: 2,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.90 : 3,190.23 = 1,910.82 : x
  2. Step 2: Convert to fraction form
    2,127.90/3,190.23 = 1,910.82/x
  3. Step 3: Cross multiply
    2,127.90x = 3,190.23 × 1,910.82
  4. Step 4: Simplify right side
    2,127.90x = 6,095,955.29
  5. Step 5: Solve for x
    x = 6,095,955.29/2,127.90
  6. Step 6: Final answer
    x = 2,864.78

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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.