Home / 5,406.14-8,109.19-2,116.93

Finding the Fourth Proportional to 5,406.14, 8,109.19 and 2,116.93

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Solution

The fourth proportional to 5,406.14, 8,109.19 and 2,116.93 is: 3,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.14 : 8,109.19 = 2,116.93 : x
  2. Step 2: Convert to fraction form
    5,406.14/8,109.19 = 2,116.93/x
  3. Step 3: Cross multiply
    5,406.14x = 8,109.19 × 2,116.93
  4. Step 4: Simplify right side
    5,406.14x = 17,166,587.59
  5. Step 5: Solve for x
    x = 17,166,587.59/5,406.14
  6. Step 6: Final answer
    x = 3,175.39

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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.