Home / 1,996.20-3,009.24-1,862.40

Finding the Fourth Proportional to 1,996.20, 3,009.24 and 1,862.40

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Solution

The fourth proportional to 1,996.20, 3,009.24 and 1,862.40 is: 2,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.20 : 3,009.24 = 1,862.40 : x
  2. Step 2: Convert to fraction form
    1,996.20/3,009.24 = 1,862.40/x
  3. Step 3: Cross multiply
    1,996.20x = 3,009.24 × 1,862.40
  4. Step 4: Simplify right side
    1,996.20x = 5,604,408.58
  5. Step 5: Solve for x
    x = 5,604,408.58/1,996.20
  6. Step 6: Final answer
    x = 2,807.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.