Home / 3,427.84-5,143.14-1,236.72

Finding the Fourth Proportional to 3,427.84, 5,143.14 and 1,236.72

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Solution

The fourth proportional to 3,427.84, 5,143.14 and 1,236.72 is: 1,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.84 : 5,143.14 = 1,236.72 : x
  2. Step 2: Convert to fraction form
    3,427.84/5,143.14 = 1,236.72/x
  3. Step 3: Cross multiply
    3,427.84x = 5,143.14 × 1,236.72
  4. Step 4: Simplify right side
    3,427.84x = 6,360,624.10
  5. Step 5: Solve for x
    x = 6,360,624.10/3,427.84
  6. Step 6: Final answer
    x = 1,855.58

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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.