Home / 2,686.62-4,030.64-1,105.83

Finding the Fourth Proportional to 2,686.62, 4,030.64 and 1,105.83

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Solution

The fourth proportional to 2,686.62, 4,030.64 and 1,105.83 is: 1,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.62 : 4,030.64 = 1,105.83 : x
  2. Step 2: Convert to fraction form
    2,686.62/4,030.64 = 1,105.83/x
  3. Step 3: Cross multiply
    2,686.62x = 4,030.64 × 1,105.83
  4. Step 4: Simplify right side
    2,686.62x = 4,457,197.10
  5. Step 5: Solve for x
    x = 4,457,197.10/2,686.62
  6. Step 6: Final answer
    x = 1,659.04

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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.