Home / 2,575.08-3,855.60-1,917.36

Finding the Fourth Proportional to 2,575.08, 3,855.60 and 1,917.36

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Solution

The fourth proportional to 2,575.08, 3,855.60 and 1,917.36 is: 2,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.08 : 3,855.60 = 1,917.36 : x
  2. Step 2: Convert to fraction form
    2,575.08/3,855.60 = 1,917.36/x
  3. Step 3: Cross multiply
    2,575.08x = 3,855.60 × 1,917.36
  4. Step 4: Simplify right side
    2,575.08x = 7,392,573.22
  5. Step 5: Solve for x
    x = 7,392,573.22/2,575.08
  6. Step 6: Final answer
    x = 2,870.81

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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.