Home / 3,146.12-4,715.34-1,412.84

Finding the Fourth Proportional to 3,146.12, 4,715.34 and 1,412.84

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Solution

The fourth proportional to 3,146.12, 4,715.34 and 1,412.84 is: 2,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.12 : 4,715.34 = 1,412.84 : x
  2. Step 2: Convert to fraction form
    3,146.12/4,715.34 = 1,412.84/x
  3. Step 3: Cross multiply
    3,146.12x = 4,715.34 × 1,412.84
  4. Step 4: Simplify right side
    3,146.12x = 6,662,020.97
  5. Step 5: Solve for x
    x = 6,662,020.97/3,146.12
  6. Step 6: Final answer
    x = 2,117.54

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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.