Home / 5,218.38-7,830.54-3,462.21

Finding the Fourth Proportional to 5,218.38, 7,830.54 and 3,462.21

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Solution

The fourth proportional to 5,218.38, 7,830.54 and 3,462.21 is: 5,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.38 : 7,830.54 = 3,462.21 : x
  2. Step 2: Convert to fraction form
    5,218.38/7,830.54 = 3,462.21/x
  3. Step 3: Cross multiply
    5,218.38x = 7,830.54 × 3,462.21
  4. Step 4: Simplify right side
    5,218.38x = 27,110,973.89
  5. Step 5: Solve for x
    x = 27,110,973.89/5,218.38
  6. Step 6: Final answer
    x = 5,195.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.