Home / 1,676.18-2,511.93-1,428.09

Finding the Fourth Proportional to 1,676.18, 2,511.93 and 1,428.09

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Solution

The fourth proportional to 1,676.18, 2,511.93 and 1,428.09 is: 2,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.18 : 2,511.93 = 1,428.09 : x
  2. Step 2: Convert to fraction form
    1,676.18/2,511.93 = 1,428.09/x
  3. Step 3: Cross multiply
    1,676.18x = 2,511.93 × 1,428.09
  4. Step 4: Simplify right side
    1,676.18x = 3,587,272.18
  5. Step 5: Solve for x
    x = 3,587,272.18/1,676.18
  6. Step 6: Final answer
    x = 2,140.14

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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.