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Finding the Fourth Proportional to 3,427.42, 4,725.42 and 2,797.30

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Solution

The fourth proportional to 3,427.42, 4,725.42 and 2,797.30 is: 3,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.42 : 4,725.42 = 2,797.30 : x
  2. Step 2: Convert to fraction form
    3,427.42/4,725.42 = 2,797.30/x
  3. Step 3: Cross multiply
    3,427.42x = 4,725.42 × 2,797.30
  4. Step 4: Simplify right side
    3,427.42x = 13,218,417.37
  5. Step 5: Solve for x
    x = 13,218,417.37/3,427.42
  6. Step 6: Final answer
    x = 3,856.67

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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.