Home / 2,079.68-3,116.76-1,103.68

Finding the Fourth Proportional to 2,079.68, 3,116.76 and 1,103.68

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Solution

The fourth proportional to 2,079.68, 3,116.76 and 1,103.68 is: 1,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.68 : 3,116.76 = 1,103.68 : x
  2. Step 2: Convert to fraction form
    2,079.68/3,116.76 = 1,103.68/x
  3. Step 3: Cross multiply
    2,079.68x = 3,116.76 × 1,103.68
  4. Step 4: Simplify right side
    2,079.68x = 3,439,905.68
  5. Step 5: Solve for x
    x = 3,439,905.68/2,079.68
  6. Step 6: Final answer
    x = 1,654.06

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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.