Home / 2,447.40-3,377.90-1,661.70

Finding the Fourth Proportional to 2,447.40, 3,377.90 and 1,661.70

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Solution

The fourth proportional to 2,447.40, 3,377.90 and 1,661.70 is: 2,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.40 : 3,377.90 = 1,661.70 : x
  2. Step 2: Convert to fraction form
    2,447.40/3,377.90 = 1,661.70/x
  3. Step 3: Cross multiply
    2,447.40x = 3,377.90 × 1,661.70
  4. Step 4: Simplify right side
    2,447.40x = 5,613,056.43
  5. Step 5: Solve for x
    x = 5,613,056.43/2,447.40
  6. Step 6: Final answer
    x = 2,293.48

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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.