Home / 2,575.92-3,860.28-1,276.08

Finding the Fourth Proportional to 2,575.92, 3,860.28 and 1,276.08

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Solution

The fourth proportional to 2,575.92, 3,860.28 and 1,276.08 is: 1,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.92 : 3,860.28 = 1,276.08 : x
  2. Step 2: Convert to fraction form
    2,575.92/3,860.28 = 1,276.08/x
  3. Step 3: Cross multiply
    2,575.92x = 3,860.28 × 1,276.08
  4. Step 4: Simplify right side
    2,575.92x = 4,926,026.10
  5. Step 5: Solve for x
    x = 4,926,026.10/2,575.92
  6. Step 6: Final answer
    x = 1,912.34

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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.