Home / 2,528.53-3,489.29-1,409.38

Finding the Fourth Proportional to 2,528.53, 3,489.29 and 1,409.38

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Solution

The fourth proportional to 2,528.53, 3,489.29 and 1,409.38 is: 1,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.53 : 3,489.29 = 1,409.38 : x
  2. Step 2: Convert to fraction form
    2,528.53/3,489.29 = 1,409.38/x
  3. Step 3: Cross multiply
    2,528.53x = 3,489.29 × 1,409.38
  4. Step 4: Simplify right side
    2,528.53x = 4,917,735.54
  5. Step 5: Solve for x
    x = 4,917,735.54/2,528.53
  6. Step 6: Final answer
    x = 1,944.90

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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.