Home / 5,266.80-7,268.21-2,876.79

Finding the Fourth Proportional to 5,266.80, 7,268.21 and 2,876.79

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Solution

The fourth proportional to 5,266.80, 7,268.21 and 2,876.79 is: 3,969.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.80 : 7,268.21 = 2,876.79 : x
  2. Step 2: Convert to fraction form
    5,266.80/7,268.21 = 2,876.79/x
  3. Step 3: Cross multiply
    5,266.80x = 7,268.21 × 2,876.79
  4. Step 4: Simplify right side
    5,266.80x = 20,909,099.46
  5. Step 5: Solve for x
    x = 20,909,099.46/5,266.80
  6. Step 6: Final answer
    x = 3,969.98

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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.