Home / 3,972.01-5,485.78-2,710.84

Finding the Fourth Proportional to 3,972.01, 5,485.78 and 2,710.84

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Solution

The fourth proportional to 3,972.01, 5,485.78 and 2,710.84 is: 3,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.01 : 5,485.78 = 2,710.84 : x
  2. Step 2: Convert to fraction form
    3,972.01/5,485.78 = 2,710.84/x
  3. Step 3: Cross multiply
    3,972.01x = 5,485.78 × 2,710.84
  4. Step 4: Simplify right side
    3,972.01x = 14,871,072.00
  5. Step 5: Solve for x
    x = 14,871,072.00/3,972.01
  6. Step 6: Final answer
    x = 3,743.96

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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.