Home / 1,861.26-2,569.30-1,198.96

Finding the Fourth Proportional to 1,861.26, 2,569.30 and 1,198.96

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Solution

The fourth proportional to 1,861.26, 2,569.30 and 1,198.96 is: 1,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.26 : 2,569.30 = 1,198.96 : x
  2. Step 2: Convert to fraction form
    1,861.26/2,569.30 = 1,198.96/x
  3. Step 3: Cross multiply
    1,861.26x = 2,569.30 × 1,198.96
  4. Step 4: Simplify right side
    1,861.26x = 3,080,487.93
  5. Step 5: Solve for x
    x = 3,080,487.93/1,861.26
  6. Step 6: Final answer
    x = 1,655.06

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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.