Home / 3,487.29-5,229.62-1,406.58

Finding the Fourth Proportional to 3,487.29, 5,229.62 and 1,406.58

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Solution

The fourth proportional to 3,487.29, 5,229.62 and 1,406.58 is: 2,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.29 : 5,229.62 = 1,406.58 : x
  2. Step 2: Convert to fraction form
    3,487.29/5,229.62 = 1,406.58/x
  3. Step 3: Cross multiply
    3,487.29x = 5,229.62 × 1,406.58
  4. Step 4: Simplify right side
    3,487.29x = 7,355,871.87
  5. Step 5: Solve for x
    x = 7,355,871.87/3,487.29
  6. Step 6: Final answer
    x = 2,109.34

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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.