Home / 1,310.27-1,966.50-1,228.19

Finding the Fourth Proportional to 1,310.27, 1,966.50 and 1,228.19

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Solution

The fourth proportional to 1,310.27, 1,966.50 and 1,228.19 is: 1,843.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.27 : 1,966.50 = 1,228.19 : x
  2. Step 2: Convert to fraction form
    1,310.27/1,966.50 = 1,228.19/x
  3. Step 3: Cross multiply
    1,310.27x = 1,966.50 × 1,228.19
  4. Step 4: Simplify right side
    1,310.27x = 2,415,225.80
  5. Step 5: Solve for x
    x = 2,415,225.80/1,310.27
  6. Step 6: Final answer
    x = 1,843.31

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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.