Home / 1,609.45-2,220.56-1,170.43

Finding the Fourth Proportional to 1,609.45, 2,220.56 and 1,170.43

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Solution

The fourth proportional to 1,609.45, 2,220.56 and 1,170.43 is: 1,614.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.45 : 2,220.56 = 1,170.43 : x
  2. Step 2: Convert to fraction form
    1,609.45/2,220.56 = 1,170.43/x
  3. Step 3: Cross multiply
    1,609.45x = 2,220.56 × 1,170.43
  4. Step 4: Simplify right side
    1,609.45x = 2,599,004.19
  5. Step 5: Solve for x
    x = 2,599,004.19/1,609.45
  6. Step 6: Final answer
    x = 1,614.84

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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.