Home / 2,110.99-2,912.01-1,271.19

Finding the Fourth Proportional to 2,110.99, 2,912.01 and 1,271.19

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Solution

The fourth proportional to 2,110.99, 2,912.01 and 1,271.19 is: 1,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.99 : 2,912.01 = 1,271.19 : x
  2. Step 2: Convert to fraction form
    2,110.99/2,912.01 = 1,271.19/x
  3. Step 3: Cross multiply
    2,110.99x = 2,912.01 × 1,271.19
  4. Step 4: Simplify right side
    2,110.99x = 3,701,717.99
  5. Step 5: Solve for x
    x = 3,701,717.99/2,110.99
  6. Step 6: Final answer
    x = 1,753.55

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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.