Home / 3,197.45-4,412.34-1,781.01

Finding the Fourth Proportional to 3,197.45, 4,412.34 and 1,781.01

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Solution

The fourth proportional to 3,197.45, 4,412.34 and 1,781.01 is: 2,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.45 : 4,412.34 = 1,781.01 : x
  2. Step 2: Convert to fraction form
    3,197.45/4,412.34 = 1,781.01/x
  3. Step 3: Cross multiply
    3,197.45x = 4,412.34 × 1,781.01
  4. Step 4: Simplify right side
    3,197.45x = 7,858,421.66
  5. Step 5: Solve for x
    x = 7,858,421.66/3,197.45
  6. Step 6: Final answer
    x = 2,457.72

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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.