Home / 2,217.45-3,060.81-1,512.75

Finding the Fourth Proportional to 2,217.45, 3,060.81 and 1,512.75

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Solution

The fourth proportional to 2,217.45, 3,060.81 and 1,512.75 is: 2,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.45 : 3,060.81 = 1,512.75 : x
  2. Step 2: Convert to fraction form
    2,217.45/3,060.81 = 1,512.75/x
  3. Step 3: Cross multiply
    2,217.45x = 3,060.81 × 1,512.75
  4. Step 4: Simplify right side
    2,217.45x = 4,630,240.33
  5. Step 5: Solve for x
    x = 4,630,240.33/2,217.45
  6. Step 6: Final answer
    x = 2,088.09

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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.