Home / 5,270.60-7,272.72-2,912.60

Finding the Fourth Proportional to 5,270.60, 7,272.72 and 2,912.60

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Solution

The fourth proportional to 5,270.60, 7,272.72 and 2,912.60 is: 4,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.60 : 7,272.72 = 2,912.60 : x
  2. Step 2: Convert to fraction form
    5,270.60/7,272.72 = 2,912.60/x
  3. Step 3: Cross multiply
    5,270.60x = 7,272.72 × 2,912.60
  4. Step 4: Simplify right side
    5,270.60x = 21,182,524.27
  5. Step 5: Solve for x
    x = 21,182,524.27/5,270.60
  6. Step 6: Final answer
    x = 4,019.00

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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.