Home / 2,405.12-3,607.66-1,106.58

Finding the Fourth Proportional to 2,405.12, 3,607.66 and 1,106.58

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Solution

The fourth proportional to 2,405.12, 3,607.66 and 1,106.58 is: 1,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.12 : 3,607.66 = 1,106.58 : x
  2. Step 2: Convert to fraction form
    2,405.12/3,607.66 = 1,106.58/x
  3. Step 3: Cross multiply
    2,405.12x = 3,607.66 × 1,106.58
  4. Step 4: Simplify right side
    2,405.12x = 3,992,164.40
  5. Step 5: Solve for x
    x = 3,992,164.40/2,405.12
  6. Step 6: Final answer
    x = 1,659.86

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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.