Home / 3,977.37-5,487.14-2,716.40

Finding the Fourth Proportional to 3,977.37, 5,487.14 and 2,716.40

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Solution

The fourth proportional to 3,977.37, 5,487.14 and 2,716.40 is: 3,747.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.37 : 5,487.14 = 2,716.40 : x
  2. Step 2: Convert to fraction form
    3,977.37/5,487.14 = 2,716.40/x
  3. Step 3: Cross multiply
    3,977.37x = 5,487.14 × 2,716.40
  4. Step 4: Simplify right side
    3,977.37x = 14,905,287.60
  5. Step 5: Solve for x
    x = 14,905,287.60/3,977.37
  6. Step 6: Final answer
    x = 3,747.52

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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.