Home / 4,079.65-5,629.53-2,311.25

Finding the Fourth Proportional to 4,079.65, 5,629.53 and 2,311.25

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Solution

The fourth proportional to 4,079.65, 5,629.53 and 2,311.25 is: 3,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.65 : 5,629.53 = 2,311.25 : x
  2. Step 2: Convert to fraction form
    4,079.65/5,629.53 = 2,311.25/x
  3. Step 3: Cross multiply
    4,079.65x = 5,629.53 × 2,311.25
  4. Step 4: Simplify right side
    4,079.65x = 13,011,251.21
  5. Step 5: Solve for x
    x = 13,011,251.21/4,079.65
  6. Step 6: Final answer
    x = 3,189.31

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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.