Home / 5,155.13-7,114.07-2,797.27

Finding the Fourth Proportional to 5,155.13, 7,114.07 and 2,797.27

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Solution

The fourth proportional to 5,155.13, 7,114.07 and 2,797.27 is: 3,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.13 : 7,114.07 = 2,797.27 : x
  2. Step 2: Convert to fraction form
    5,155.13/7,114.07 = 2,797.27/x
  3. Step 3: Cross multiply
    5,155.13x = 7,114.07 × 2,797.27
  4. Step 4: Simplify right side
    5,155.13x = 19,899,974.59
  5. Step 5: Solve for x
    x = 19,899,974.59/5,155.13
  6. Step 6: Final answer
    x = 3,860.23

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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.