Home / 5,079.20-7,617.86-2,305.20

Finding the Fourth Proportional to 5,079.20, 7,617.86 and 2,305.20

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Solution

The fourth proportional to 5,079.20, 7,617.86 and 2,305.20 is: 3,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.20 : 7,617.86 = 2,305.20 : x
  2. Step 2: Convert to fraction form
    5,079.20/7,617.86 = 2,305.20/x
  3. Step 3: Cross multiply
    5,079.20x = 7,617.86 × 2,305.20
  4. Step 4: Simplify right side
    5,079.20x = 17,560,690.87
  5. Step 5: Solve for x
    x = 17,560,690.87/5,079.20
  6. Step 6: Final answer
    x = 3,457.37

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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.