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Finding the Fourth Proportional to 3,989.00, 5,954.30 and 3,699.87

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Solution

The fourth proportional to 3,989.00, 5,954.30 and 3,699.87 is: 5,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.00 : 5,954.30 = 3,699.87 : x
  2. Step 2: Convert to fraction form
    3,989.00/5,954.30 = 3,699.87/x
  3. Step 3: Cross multiply
    3,989.00x = 5,954.30 × 3,699.87
  4. Step 4: Simplify right side
    3,989.00x = 22,030,117.44
  5. Step 5: Solve for x
    x = 22,030,117.44/3,989.00
  6. Step 6: Final answer
    x = 5,522.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.