Home / 3,415.08-5,117.46-2,315.64

Finding the Fourth Proportional to 3,415.08, 5,117.46 and 2,315.64

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Solution

The fourth proportional to 3,415.08, 5,117.46 and 2,315.64 is: 3,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.08 : 5,117.46 = 2,315.64 : x
  2. Step 2: Convert to fraction form
    3,415.08/5,117.46 = 2,315.64/x
  3. Step 3: Cross multiply
    3,415.08x = 5,117.46 × 2,315.64
  4. Step 4: Simplify right side
    3,415.08x = 11,850,195.07
  5. Step 5: Solve for x
    x = 11,850,195.07/3,415.08
  6. Step 6: Final answer
    x = 3,469.96

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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.