Home / 2,528.48-3,489.43-1,409.43

Finding the Fourth Proportional to 2,528.48, 3,489.43 and 1,409.43

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Solution

The fourth proportional to 2,528.48, 3,489.43 and 1,409.43 is: 1,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.48 : 3,489.43 = 1,409.43 : x
  2. Step 2: Convert to fraction form
    2,528.48/3,489.43 = 1,409.43/x
  3. Step 3: Cross multiply
    2,528.48x = 3,489.43 × 1,409.43
  4. Step 4: Simplify right side
    2,528.48x = 4,918,103.80
  5. Step 5: Solve for x
    x = 4,918,103.80/2,528.48
  6. Step 6: Final answer
    x = 1,945.08

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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.