Home / 5,406.80-8,110.17-2,117.57

Finding the Fourth Proportional to 5,406.80, 8,110.17 and 2,117.57

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Solution

The fourth proportional to 5,406.80, 8,110.17 and 2,117.57 is: 3,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.80 : 8,110.17 = 2,117.57 : x
  2. Step 2: Convert to fraction form
    5,406.80/8,110.17 = 2,117.57/x
  3. Step 3: Cross multiply
    5,406.80x = 8,110.17 × 2,117.57
  4. Step 4: Simplify right side
    5,406.80x = 17,173,812.14
  5. Step 5: Solve for x
    x = 17,173,812.14/5,406.80
  6. Step 6: Final answer
    x = 3,176.34

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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.