Home / 1,676.28-2,311.90-1,395.82

Finding the Fourth Proportional to 1,676.28, 2,311.90 and 1,395.82

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Solution

The fourth proportional to 1,676.28, 2,311.90 and 1,395.82 is: 1,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.28 : 2,311.90 = 1,395.82 : x
  2. Step 2: Convert to fraction form
    1,676.28/2,311.90 = 1,395.82/x
  3. Step 3: Cross multiply
    1,676.28x = 2,311.90 × 1,395.82
  4. Step 4: Simplify right side
    1,676.28x = 3,226,996.26
  5. Step 5: Solve for x
    x = 3,226,996.26/1,676.28
  6. Step 6: Final answer
    x = 1,925.09

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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.