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Finding the Fourth Proportional to 1,250.58, 1,724.69 and 808.02

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Solution

The fourth proportional to 1,250.58, 1,724.69 and 808.02 is: 1,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.58 : 1,724.69 = 808.02 : x
  2. Step 2: Convert to fraction form
    1,250.58/1,724.69 = 808.02/x
  3. Step 3: Cross multiply
    1,250.58x = 1,724.69 × 808.02
  4. Step 4: Simplify right side
    1,250.58x = 1,393,571.35
  5. Step 5: Solve for x
    x = 1,393,571.35/1,250.58
  6. Step 6: Final answer
    x = 1,114.34

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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.