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Finding the Fourth Proportional to 3,412.41, 4,709.05 and 1,899.96

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Solution

The fourth proportional to 3,412.41, 4,709.05 and 1,899.96 is: 2,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.41 : 4,709.05 = 1,899.96 : x
  2. Step 2: Convert to fraction form
    3,412.41/4,709.05 = 1,899.96/x
  3. Step 3: Cross multiply
    3,412.41x = 4,709.05 × 1,899.96
  4. Step 4: Simplify right side
    3,412.41x = 8,946,973.59
  5. Step 5: Solve for x
    x = 8,946,973.59/3,412.41
  6. Step 6: Final answer
    x = 2,621.90

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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.