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Finding the Fourth Proportional to 2,605.44, 3,909.06 and 1,630.38

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Solution

The fourth proportional to 2,605.44, 3,909.06 and 1,630.38 is: 2,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.44 : 3,909.06 = 1,630.38 : x
  2. Step 2: Convert to fraction form
    2,605.44/3,909.06 = 1,630.38/x
  3. Step 3: Cross multiply
    2,605.44x = 3,909.06 × 1,630.38
  4. Step 4: Simplify right side
    2,605.44x = 6,373,253.24
  5. Step 5: Solve for x
    x = 6,373,253.24/2,605.44
  6. Step 6: Final answer
    x = 2,446.13

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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.