Home / 3,716.10-5,127.81-2,388.80

Finding the Fourth Proportional to 3,716.10, 5,127.81 and 2,388.80

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Solution

The fourth proportional to 3,716.10, 5,127.81 and 2,388.80 is: 3,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.10 : 5,127.81 = 2,388.80 : x
  2. Step 2: Convert to fraction form
    3,716.10/5,127.81 = 2,388.80/x
  3. Step 3: Cross multiply
    3,716.10x = 5,127.81 × 2,388.80
  4. Step 4: Simplify right side
    3,716.10x = 12,249,286.89
  5. Step 5: Solve for x
    x = 12,249,286.89/3,716.10
  6. Step 6: Final answer
    x = 3,296.27

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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.