Home / 5,456.04-8,188.14-2,124.81

Finding the Fourth Proportional to 5,456.04, 8,188.14 and 2,124.81

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Solution

The fourth proportional to 5,456.04, 8,188.14 and 2,124.81 is: 3,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.04 : 8,188.14 = 2,124.81 : x
  2. Step 2: Convert to fraction form
    5,456.04/8,188.14 = 2,124.81/x
  3. Step 3: Cross multiply
    5,456.04x = 8,188.14 × 2,124.81
  4. Step 4: Simplify right side
    5,456.04x = 17,398,241.75
  5. Step 5: Solve for x
    x = 17,398,241.75/5,456.04
  6. Step 6: Final answer
    x = 3,188.80

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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.