Home / 5,267.22-7,268.79-2,877.21

Finding the Fourth Proportional to 5,267.22, 7,268.79 and 2,877.21

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Solution

The fourth proportional to 5,267.22, 7,268.79 and 2,877.21 is: 3,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.22 : 7,268.79 = 2,877.21 : x
  2. Step 2: Convert to fraction form
    5,267.22/7,268.79 = 2,877.21/x
  3. Step 3: Cross multiply
    5,267.22x = 7,268.79 × 2,877.21
  4. Step 4: Simplify right side
    5,267.22x = 20,913,835.28
  5. Step 5: Solve for x
    x = 20,913,835.28/5,267.22
  6. Step 6: Final answer
    x = 3,970.56

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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.