Home / 2,491.30-3,437.99-1,372.25

Finding the Fourth Proportional to 2,491.30, 3,437.99 and 1,372.25

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Solution

The fourth proportional to 2,491.30, 3,437.99 and 1,372.25 is: 1,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.30 : 3,437.99 = 1,372.25 : x
  2. Step 2: Convert to fraction form
    2,491.30/3,437.99 = 1,372.25/x
  3. Step 3: Cross multiply
    2,491.30x = 3,437.99 × 1,372.25
  4. Step 4: Simplify right side
    2,491.30x = 4,717,788.66
  5. Step 5: Solve for x
    x = 4,717,788.66/2,491.30
  6. Step 6: Final answer
    x = 1,893.70

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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.