Home / 1,257.36-1,886.61-563.97

Finding the Fourth Proportional to 1,257.36, 1,886.61 and 563.97

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Solution

The fourth proportional to 1,257.36, 1,886.61 and 563.97 is: 846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.36 : 1,886.61 = 563.97 : x
  2. Step 2: Convert to fraction form
    1,257.36/1,886.61 = 563.97/x
  3. Step 3: Cross multiply
    1,257.36x = 1,886.61 × 563.97
  4. Step 4: Simplify right side
    1,257.36x = 1,063,991.44
  5. Step 5: Solve for x
    x = 1,063,991.44/1,257.36
  6. Step 6: Final answer
    x = 846.21

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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.