Home / 1,250.60-1,722.50-1,084.20

Finding the Fourth Proportional to 1,250.60, 1,722.50 and 1,084.20

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Solution

The fourth proportional to 1,250.60, 1,722.50 and 1,084.20 is: 1,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.60 : 1,722.50 = 1,084.20 : x
  2. Step 2: Convert to fraction form
    1,250.60/1,722.50 = 1,084.20/x
  3. Step 3: Cross multiply
    1,250.60x = 1,722.50 × 1,084.20
  4. Step 4: Simplify right side
    1,250.60x = 1,867,534.50
  5. Step 5: Solve for x
    x = 1,867,534.50/1,250.60
  6. Step 6: Final answer
    x = 1,493.31

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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.