Home / 1,725.41-2,588.12-426.87

Finding the Fourth Proportional to 1,725.41, 2,588.12 and 426.87

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Solution

The fourth proportional to 1,725.41, 2,588.12 and 426.87 is: 640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.41 : 2,588.12 = 426.87 : x
  2. Step 2: Convert to fraction form
    1,725.41/2,588.12 = 426.87/x
  3. Step 3: Cross multiply
    1,725.41x = 2,588.12 × 426.87
  4. Step 4: Simplify right side
    1,725.41x = 1,104,790.78
  5. Step 5: Solve for x
    x = 1,104,790.78/1,725.41
  6. Step 6: Final answer
    x = 640.31

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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.