Home / 2,110.57-2,912.05-1,271.09

Finding the Fourth Proportional to 2,110.57, 2,912.05 and 1,271.09

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Solution

The fourth proportional to 2,110.57, 2,912.05 and 1,271.09 is: 1,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.57 : 2,912.05 = 1,271.09 : x
  2. Step 2: Convert to fraction form
    2,110.57/2,912.05 = 1,271.09/x
  3. Step 3: Cross multiply
    2,110.57x = 2,912.05 × 1,271.09
  4. Step 4: Simplify right side
    2,110.57x = 3,701,477.63
  5. Step 5: Solve for x
    x = 3,701,477.63/2,110.57
  6. Step 6: Final answer
    x = 1,753.78

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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.