Home / 1,372.41-2,069.38-1,257.59

Finding the Fourth Proportional to 1,372.41, 2,069.38 and 1,257.59

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Solution

The fourth proportional to 1,372.41, 2,069.38 and 1,257.59 is: 1,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.41 : 2,069.38 = 1,257.59 : x
  2. Step 2: Convert to fraction form
    1,372.41/2,069.38 = 1,257.59/x
  3. Step 3: Cross multiply
    1,372.41x = 2,069.38 × 1,257.59
  4. Step 4: Simplify right side
    1,372.41x = 2,602,444.58
  5. Step 5: Solve for x
    x = 2,602,444.58/1,372.41
  6. Step 6: Final answer
    x = 1,896.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.