Home / 3,197.18-4,412.19-1,780.97

Finding the Fourth Proportional to 3,197.18, 4,412.19 and 1,780.97

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Solution

The fourth proportional to 3,197.18, 4,412.19 and 1,780.97 is: 2,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.18 : 4,412.19 = 1,780.97 : x
  2. Step 2: Convert to fraction form
    3,197.18/4,412.19 = 1,780.97/x
  3. Step 3: Cross multiply
    3,197.18x = 4,412.19 × 1,780.97
  4. Step 4: Simplify right side
    3,197.18x = 7,857,951.51
  5. Step 5: Solve for x
    x = 7,857,951.51/3,197.18
  6. Step 6: Final answer
    x = 2,457.77

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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.