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Finding the Fourth Proportional to 3,415.62, 4,713.79 and 1,903.29

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Solution

The fourth proportional to 3,415.62, 4,713.79 and 1,903.29 is: 2,626.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.62 : 4,713.79 = 1,903.29 : x
  2. Step 2: Convert to fraction form
    3,415.62/4,713.79 = 1,903.29/x
  3. Step 3: Cross multiply
    3,415.62x = 4,713.79 × 1,903.29
  4. Step 4: Simplify right side
    3,415.62x = 8,971,709.37
  5. Step 5: Solve for x
    x = 8,971,709.37/3,415.62
  6. Step 6: Final answer
    x = 2,626.67

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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.