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Finding the Fourth Proportional to 1,250.37, 1,725.51 and 857.52

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Solution

The fourth proportional to 1,250.37, 1,725.51 and 857.52 is: 1,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.37 : 1,725.51 = 857.52 : x
  2. Step 2: Convert to fraction form
    1,250.37/1,725.51 = 857.52/x
  3. Step 3: Cross multiply
    1,250.37x = 1,725.51 × 857.52
  4. Step 4: Simplify right side
    1,250.37x = 1,479,659.34
  5. Step 5: Solve for x
    x = 1,479,659.34/1,250.37
  6. Step 6: Final answer
    x = 1,183.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.