Home / 5,149.48-7,098.42-3,156.34

Finding the Fourth Proportional to 5,149.48, 7,098.42 and 3,156.34

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Solution

The fourth proportional to 5,149.48, 7,098.42 and 3,156.34 is: 4,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.48 : 7,098.42 = 3,156.34 : x
  2. Step 2: Convert to fraction form
    5,149.48/7,098.42 = 3,156.34/x
  3. Step 3: Cross multiply
    5,149.48x = 7,098.42 × 3,156.34
  4. Step 4: Simplify right side
    5,149.48x = 22,405,026.98
  5. Step 5: Solve for x
    x = 22,405,026.98/5,149.48
  6. Step 6: Final answer
    x = 4,350.93

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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.