Home / 4,185.12-5,775.52-2,416.80

Finding the Fourth Proportional to 4,185.12, 5,775.52 and 2,416.80

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Solution

The fourth proportional to 4,185.12, 5,775.52 and 2,416.80 is: 3,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.12 : 5,775.52 = 2,416.80 : x
  2. Step 2: Convert to fraction form
    4,185.12/5,775.52 = 2,416.80/x
  3. Step 3: Cross multiply
    4,185.12x = 5,775.52 × 2,416.80
  4. Step 4: Simplify right side
    4,185.12x = 13,958,276.74
  5. Step 5: Solve for x
    x = 13,958,276.74/4,185.12
  6. Step 6: Final answer
    x = 3,335.22

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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.