Home / 1,610.28-2,221.14-1,236.69

Finding the Fourth Proportional to 1,610.28, 2,221.14 and 1,236.69

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Solution

The fourth proportional to 1,610.28, 2,221.14 and 1,236.69 is: 1,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.28 : 2,221.14 = 1,236.69 : x
  2. Step 2: Convert to fraction form
    1,610.28/2,221.14 = 1,236.69/x
  3. Step 3: Cross multiply
    1,610.28x = 2,221.14 × 1,236.69
  4. Step 4: Simplify right side
    1,610.28x = 2,746,861.63
  5. Step 5: Solve for x
    x = 2,746,861.63/1,610.28
  6. Step 6: Final answer
    x = 1,705.83

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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.