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Finding the Fourth Proportional to 3,347.96, 5,021.93 and 1,399.10

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Solution

The fourth proportional to 3,347.96, 5,021.93 and 1,399.10 is: 2,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.96 : 5,021.93 = 1,399.10 : x
  2. Step 2: Convert to fraction form
    3,347.96/5,021.93 = 1,399.10/x
  3. Step 3: Cross multiply
    3,347.96x = 5,021.93 × 1,399.10
  4. Step 4: Simplify right side
    3,347.96x = 7,026,175.27
  5. Step 5: Solve for x
    x = 7,026,175.27/3,347.96
  6. Step 6: Final answer
    x = 2,098.64

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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.