Home / 2,057.19-2,839.08-1,271.49

Finding the Fourth Proportional to 2,057.19, 2,839.08 and 1,271.49

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Solution

The fourth proportional to 2,057.19, 2,839.08 and 1,271.49 is: 1,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.19 : 2,839.08 = 1,271.49 : x
  2. Step 2: Convert to fraction form
    2,057.19/2,839.08 = 1,271.49/x
  3. Step 3: Cross multiply
    2,057.19x = 2,839.08 × 1,271.49
  4. Step 4: Simplify right side
    2,057.19x = 3,609,861.83
  5. Step 5: Solve for x
    x = 3,609,861.83/2,057.19
  6. Step 6: Final answer
    x = 1,754.75

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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.