Home / 2,197.20-3,032.82-1,808.40

Finding the Fourth Proportional to 2,197.20, 3,032.82 and 1,808.40

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Solution

The fourth proportional to 2,197.20, 3,032.82 and 1,808.40 is: 2,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.20 : 3,032.82 = 1,808.40 : x
  2. Step 2: Convert to fraction form
    2,197.20/3,032.82 = 1,808.40/x
  3. Step 3: Cross multiply
    2,197.20x = 3,032.82 × 1,808.40
  4. Step 4: Simplify right side
    2,197.20x = 5,484,551.69
  5. Step 5: Solve for x
    x = 5,484,551.69/2,197.20
  6. Step 6: Final answer
    x = 2,496.15

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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.