Home / 5,268.85-7,271.49-2,911.75

Finding the Fourth Proportional to 5,268.85, 7,271.49 and 2,911.75

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Solution

The fourth proportional to 5,268.85, 7,271.49 and 2,911.75 is: 4,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.85 : 7,271.49 = 2,911.75 : x
  2. Step 2: Convert to fraction form
    5,268.85/7,271.49 = 2,911.75/x
  3. Step 3: Cross multiply
    5,268.85x = 7,271.49 × 2,911.75
  4. Step 4: Simplify right side
    5,268.85x = 21,172,761.01
  5. Step 5: Solve for x
    x = 21,172,761.01/5,268.85
  6. Step 6: Final answer
    x = 4,018.48

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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.