Home / 1,867.10-2,800.65-1,815.26

Finding the Fourth Proportional to 1,867.10, 2,800.65 and 1,815.26

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Solution

The fourth proportional to 1,867.10, 2,800.65 and 1,815.26 is: 2,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.10 : 2,800.65 = 1,815.26 : x
  2. Step 2: Convert to fraction form
    1,867.10/2,800.65 = 1,815.26/x
  3. Step 3: Cross multiply
    1,867.10x = 2,800.65 × 1,815.26
  4. Step 4: Simplify right side
    1,867.10x = 5,083,907.92
  5. Step 5: Solve for x
    x = 5,083,907.92/1,867.10
  6. Step 6: Final answer
    x = 2,722.89

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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.