Home / 1,876.79-2,815.92-1,357.44

Finding the Fourth Proportional to 1,876.79, 2,815.92 and 1,357.44

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Solution

The fourth proportional to 1,876.79, 2,815.92 and 1,357.44 is: 2,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.79 : 2,815.92 = 1,357.44 : x
  2. Step 2: Convert to fraction form
    1,876.79/2,815.92 = 1,357.44/x
  3. Step 3: Cross multiply
    1,876.79x = 2,815.92 × 1,357.44
  4. Step 4: Simplify right side
    1,876.79x = 3,822,442.44
  5. Step 5: Solve for x
    x = 3,822,442.44/1,876.79
  6. Step 6: Final answer
    x = 2,036.70

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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.