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Finding the Fourth Proportional to 3,973.01, 5,487.16 and 2,711.84

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Solution

The fourth proportional to 3,973.01, 5,487.16 and 2,711.84 is: 3,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.01 : 5,487.16 = 2,711.84 : x
  2. Step 2: Convert to fraction form
    3,973.01/5,487.16 = 2,711.84/x
  3. Step 3: Cross multiply
    3,973.01x = 5,487.16 × 2,711.84
  4. Step 4: Simplify right side
    3,973.01x = 14,880,299.97
  5. Step 5: Solve for x
    x = 14,880,299.97/3,973.01
  6. Step 6: Final answer
    x = 3,745.35

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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.