Home / 2,625.78-3,939.09-1,586.55

Finding the Fourth Proportional to 2,625.78, 3,939.09 and 1,586.55

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Solution

The fourth proportional to 2,625.78, 3,939.09 and 1,586.55 is: 2,380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.78 : 3,939.09 = 1,586.55 : x
  2. Step 2: Convert to fraction form
    2,625.78/3,939.09 = 1,586.55/x
  3. Step 3: Cross multiply
    2,625.78x = 3,939.09 × 1,586.55
  4. Step 4: Simplify right side
    2,625.78x = 6,249,563.24
  5. Step 5: Solve for x
    x = 6,249,563.24/2,625.78
  6. Step 6: Final answer
    x = 2,380.08

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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.