Home / 3,351.12-5,026.68-1,815.12

Finding the Fourth Proportional to 3,351.12, 5,026.68 and 1,815.12

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Solution

The fourth proportional to 3,351.12, 5,026.68 and 1,815.12 is: 2,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.12 : 5,026.68 = 1,815.12 : x
  2. Step 2: Convert to fraction form
    3,351.12/5,026.68 = 1,815.12/x
  3. Step 3: Cross multiply
    3,351.12x = 5,026.68 × 1,815.12
  4. Step 4: Simplify right side
    3,351.12x = 9,124,027.40
  5. Step 5: Solve for x
    x = 9,124,027.40/3,351.12
  6. Step 6: Final answer
    x = 2,722.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.