Home / 4,079.35-5,629.73-2,311.30

Finding the Fourth Proportional to 4,079.35, 5,629.73 and 2,311.30

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Solution

The fourth proportional to 4,079.35, 5,629.73 and 2,311.30 is: 3,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.35 : 5,629.73 = 2,311.30 : x
  2. Step 2: Convert to fraction form
    4,079.35/5,629.73 = 2,311.30/x
  3. Step 3: Cross multiply
    4,079.35x = 5,629.73 × 2,311.30
  4. Step 4: Simplify right side
    4,079.35x = 13,012,009.02
  5. Step 5: Solve for x
    x = 13,012,009.02/4,079.35
  6. Step 6: Final answer
    x = 3,189.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.