Home / 5,270.10-7,272.36-2,911.92

Finding the Fourth Proportional to 5,270.10, 7,272.36 and 2,911.92

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Solution

The fourth proportional to 5,270.10, 7,272.36 and 2,911.92 is: 4,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.10 : 7,272.36 = 2,911.92 : x
  2. Step 2: Convert to fraction form
    5,270.10/7,272.36 = 2,911.92/x
  3. Step 3: Cross multiply
    5,270.10x = 7,272.36 × 2,911.92
  4. Step 4: Simplify right side
    5,270.10x = 21,176,530.53
  5. Step 5: Solve for x
    x = 21,176,530.53/5,270.10
  6. Step 6: Final answer
    x = 4,018.24

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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.