Home / 1,243.26-1,711.80-1,056.33

Finding the Fourth Proportional to 1,243.26, 1,711.80 and 1,056.33

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Solution

The fourth proportional to 1,243.26, 1,711.80 and 1,056.33 is: 1,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.26 : 1,711.80 = 1,056.33 : x
  2. Step 2: Convert to fraction form
    1,243.26/1,711.80 = 1,056.33/x
  3. Step 3: Cross multiply
    1,243.26x = 1,711.80 × 1,056.33
  4. Step 4: Simplify right side
    1,243.26x = 1,808,225.69
  5. Step 5: Solve for x
    x = 1,808,225.69/1,243.26
  6. Step 6: Final answer
    x = 1,454.42

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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.