Home / 1,825.31-2,738.43-526.78

Finding the Fourth Proportional to 1,825.31, 2,738.43 and 526.78

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Solution

The fourth proportional to 1,825.31, 2,738.43 and 526.78 is: 790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.31 : 2,738.43 = 526.78 : x
  2. Step 2: Convert to fraction form
    1,825.31/2,738.43 = 526.78/x
  3. Step 3: Cross multiply
    1,825.31x = 2,738.43 × 526.78
  4. Step 4: Simplify right side
    1,825.31x = 1,442,553.58
  5. Step 5: Solve for x
    x = 1,442,553.58/1,825.31
  6. Step 6: Final answer
    x = 790.30

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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.