Home / 1,679.10-2,518.65-1,491.90

Finding the Fourth Proportional to 1,679.10, 2,518.65 and 1,491.90

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Solution

The fourth proportional to 1,679.10, 2,518.65 and 1,491.90 is: 2,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.10 : 2,518.65 = 1,491.90 : x
  2. Step 2: Convert to fraction form
    1,679.10/2,518.65 = 1,491.90/x
  3. Step 3: Cross multiply
    1,679.10x = 2,518.65 × 1,491.90
  4. Step 4: Simplify right side
    1,679.10x = 3,757,573.94
  5. Step 5: Solve for x
    x = 3,757,573.94/1,679.10
  6. Step 6: Final answer
    x = 2,237.85

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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.