Home / 1,725.78-2,588.66-629.70

Finding the Fourth Proportional to 1,725.78, 2,588.66 and 629.70

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Solution

The fourth proportional to 1,725.78, 2,588.66 and 629.70 is: 944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.78 : 2,588.66 = 629.70 : x
  2. Step 2: Convert to fraction form
    1,725.78/2,588.66 = 629.70/x
  3. Step 3: Cross multiply
    1,725.78x = 2,588.66 × 629.70
  4. Step 4: Simplify right side
    1,725.78x = 1,630,079.20
  5. Step 5: Solve for x
    x = 1,630,079.20/1,725.78
  6. Step 6: Final answer
    x = 944.55

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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.