Home / 5,273.28-7,276.86-2,915.28

Finding the Fourth Proportional to 5,273.28, 7,276.86 and 2,915.28

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Solution

The fourth proportional to 5,273.28, 7,276.86 and 2,915.28 is: 4,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.28 : 7,276.86 = 2,915.28 : x
  2. Step 2: Convert to fraction form
    5,273.28/7,276.86 = 2,915.28/x
  3. Step 3: Cross multiply
    5,273.28x = 7,276.86 × 2,915.28
  4. Step 4: Simplify right side
    5,273.28x = 21,214,084.42
  5. Step 5: Solve for x
    x = 21,214,084.42/5,273.28
  6. Step 6: Final answer
    x = 4,022.94

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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.