Home / 2,191.85-3,024.82-1,197.20

Finding the Fourth Proportional to 2,191.85, 3,024.82 and 1,197.20

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Solution

The fourth proportional to 2,191.85, 3,024.82 and 1,197.20 is: 1,652.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.85 : 3,024.82 = 1,197.20 : x
  2. Step 2: Convert to fraction form
    2,191.85/3,024.82 = 1,197.20/x
  3. Step 3: Cross multiply
    2,191.85x = 3,024.82 × 1,197.20
  4. Step 4: Simplify right side
    2,191.85x = 3,621,293.39
  5. Step 5: Solve for x
    x = 3,621,293.39/2,191.85
  6. Step 6: Final answer
    x = 1,652.17

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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.