Home / 2,528.21-3,489.01-1,409.38

Finding the Fourth Proportional to 2,528.21, 3,489.01 and 1,409.38

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Solution

The fourth proportional to 2,528.21, 3,489.01 and 1,409.38 is: 1,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.21 : 3,489.01 = 1,409.38 : x
  2. Step 2: Convert to fraction form
    2,528.21/3,489.01 = 1,409.38/x
  3. Step 3: Cross multiply
    2,528.21x = 3,489.01 × 1,409.38
  4. Step 4: Simplify right side
    2,528.21x = 4,917,348.29
  5. Step 5: Solve for x
    x = 4,917,348.29/2,528.21
  6. Step 6: Final answer
    x = 1,944.99

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Double scale
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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.