Home / 2,145.64-3,219.06-1,106.02

Finding the Fourth Proportional to 2,145.64, 3,219.06 and 1,106.02

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Solution

The fourth proportional to 2,145.64, 3,219.06 and 1,106.02 is: 1,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.64 : 3,219.06 = 1,106.02 : x
  2. Step 2: Convert to fraction form
    2,145.64/3,219.06 = 1,106.02/x
  3. Step 3: Cross multiply
    2,145.64x = 3,219.06 × 1,106.02
  4. Step 4: Simplify right side
    2,145.64x = 3,560,344.74
  5. Step 5: Solve for x
    x = 3,560,344.74/2,145.64
  6. Step 6: Final answer
    x = 1,659.34

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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.