Home / 1,752.33-2,419.35-1,221.03

Finding the Fourth Proportional to 1,752.33, 2,419.35 and 1,221.03

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Solution

The fourth proportional to 1,752.33, 2,419.35 and 1,221.03 is: 1,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.33 : 2,419.35 = 1,221.03 : x
  2. Step 2: Convert to fraction form
    1,752.33/2,419.35 = 1,221.03/x
  3. Step 3: Cross multiply
    1,752.33x = 2,419.35 × 1,221.03
  4. Step 4: Simplify right side
    1,752.33x = 2,954,098.93
  5. Step 5: Solve for x
    x = 2,954,098.93/1,752.33
  6. Step 6: Final answer
    x = 1,685.81

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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.