Home / 2,538.40-3,502.97-1,419.34

Finding the Fourth Proportional to 2,538.40, 3,502.97 and 1,419.34

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Solution

The fourth proportional to 2,538.40, 3,502.97 and 1,419.34 is: 1,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.40 : 3,502.97 = 1,419.34 : x
  2. Step 2: Convert to fraction form
    2,538.40/3,502.97 = 1,419.34/x
  3. Step 3: Cross multiply
    2,538.40x = 3,502.97 × 1,419.34
  4. Step 4: Simplify right side
    2,538.40x = 4,971,900.23
  5. Step 5: Solve for x
    x = 4,971,900.23/2,538.40
  6. Step 6: Final answer
    x = 1,958.68

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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.