Home / 3,197.51-4,412.44-1,781.12

Finding the Fourth Proportional to 3,197.51, 4,412.44 and 1,781.12

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Solution

The fourth proportional to 3,197.51, 4,412.44 and 1,781.12 is: 2,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.51 : 4,412.44 = 1,781.12 : x
  2. Step 2: Convert to fraction form
    3,197.51/4,412.44 = 1,781.12/x
  3. Step 3: Cross multiply
    3,197.51x = 4,412.44 × 1,781.12
  4. Step 4: Simplify right side
    3,197.51x = 7,859,077.50
  5. Step 5: Solve for x
    x = 7,859,077.50/3,197.51
  6. Step 6: Final answer
    x = 2,457.88

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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.