Home / 1,725.10-2,586.09-628.70

Finding the Fourth Proportional to 1,725.10, 2,586.09 and 628.70

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Solution

The fourth proportional to 1,725.10, 2,586.09 and 628.70 is: 942.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.10 : 2,586.09 = 628.70 : x
  2. Step 2: Convert to fraction form
    1,725.10/2,586.09 = 628.70/x
  3. Step 3: Cross multiply
    1,725.10x = 2,586.09 × 628.70
  4. Step 4: Simplify right side
    1,725.10x = 1,625,864.21
  5. Step 5: Solve for x
    x = 1,625,864.21/1,725.10
  6. Step 6: Final answer
    x = 942.48

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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.