Home / 2,145.41-3,212.61-1,486.35

Finding the Fourth Proportional to 2,145.41, 3,212.61 and 1,486.35

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Solution

The fourth proportional to 2,145.41, 3,212.61 and 1,486.35 is: 2,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.41 : 3,212.61 = 1,486.35 : x
  2. Step 2: Convert to fraction form
    2,145.41/3,212.61 = 1,486.35/x
  3. Step 3: Cross multiply
    2,145.41x = 3,212.61 × 1,486.35
  4. Step 4: Simplify right side
    2,145.41x = 4,775,065.66
  5. Step 5: Solve for x
    x = 4,775,065.66/2,145.41
  6. Step 6: Final answer
    x = 2,225.71

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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.