Home / 5,268.76-7,271.40-2,911.06

Finding the Fourth Proportional to 5,268.76, 7,271.40 and 2,911.06

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Solution

The fourth proportional to 5,268.76, 7,271.40 and 2,911.06 is: 4,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.76 : 7,271.40 = 2,911.06 : x
  2. Step 2: Convert to fraction form
    5,268.76/7,271.40 = 2,911.06/x
  3. Step 3: Cross multiply
    5,268.76x = 7,271.40 × 2,911.06
  4. Step 4: Simplify right side
    5,268.76x = 21,167,481.68
  5. Step 5: Solve for x
    x = 21,167,481.68/5,268.76
  6. Step 6: Final answer
    x = 4,017.55

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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.