Home / 2,531.27-3,489.84-1,646.75

Finding the Fourth Proportional to 2,531.27, 3,489.84 and 1,646.75

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Solution

The fourth proportional to 2,531.27, 3,489.84 and 1,646.75 is: 2,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.27 : 3,489.84 = 1,646.75 : x
  2. Step 2: Convert to fraction form
    2,531.27/3,489.84 = 1,646.75/x
  3. Step 3: Cross multiply
    2,531.27x = 3,489.84 × 1,646.75
  4. Step 4: Simplify right side
    2,531.27x = 5,746,902.74
  5. Step 5: Solve for x
    x = 5,746,902.74/2,531.27
  6. Step 6: Final answer
    x = 2,270.36

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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.