Home / 2,825.79-4,238.46-1,265.88

Finding the Fourth Proportional to 2,825.79, 4,238.46 and 1,265.88

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Solution

The fourth proportional to 2,825.79, 4,238.46 and 1,265.88 is: 1,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.79 : 4,238.46 = 1,265.88 : x
  2. Step 2: Convert to fraction form
    2,825.79/4,238.46 = 1,265.88/x
  3. Step 3: Cross multiply
    2,825.79x = 4,238.46 × 1,265.88
  4. Step 4: Simplify right side
    2,825.79x = 5,365,381.74
  5. Step 5: Solve for x
    x = 5,365,381.74/2,825.79
  6. Step 6: Final answer
    x = 1,898.72

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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.