Home / 5,273.56-7,280.58-3,178.36

Finding the Fourth Proportional to 5,273.56, 7,280.58 and 3,178.36

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Solution

The fourth proportional to 5,273.56, 7,280.58 and 3,178.36 is: 4,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.56 : 7,280.58 = 3,178.36 : x
  2. Step 2: Convert to fraction form
    5,273.56/7,280.58 = 3,178.36/x
  3. Step 3: Cross multiply
    5,273.56x = 7,280.58 × 3,178.36
  4. Step 4: Simplify right side
    5,273.56x = 23,140,304.25
  5. Step 5: Solve for x
    x = 23,140,304.25/5,273.56
  6. Step 6: Final answer
    x = 4,387.99

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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.