Home / 5,270.28-7,272.50-3,873.80

Finding the Fourth Proportional to 5,270.28, 7,272.50 and 3,873.80

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Solution

The fourth proportional to 5,270.28, 7,272.50 and 3,873.80 is: 5,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.28 : 7,272.50 = 3,873.80 : x
  2. Step 2: Convert to fraction form
    5,270.28/7,272.50 = 3,873.80/x
  3. Step 3: Cross multiply
    5,270.28x = 7,272.50 × 3,873.80
  4. Step 4: Simplify right side
    5,270.28x = 28,172,210.50
  5. Step 5: Solve for x
    x = 28,172,210.50/5,270.28
  6. Step 6: Final answer
    x = 5,345.49

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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.