Home / 5,312.45-7,969.73-2,194.16

Finding the Fourth Proportional to 5,312.45, 7,969.73 and 2,194.16

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Solution

The fourth proportional to 5,312.45, 7,969.73 and 2,194.16 is: 3,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.45 : 7,969.73 = 2,194.16 : x
  2. Step 2: Convert to fraction form
    5,312.45/7,969.73 = 2,194.16/x
  3. Step 3: Cross multiply
    5,312.45x = 7,969.73 × 2,194.16
  4. Step 4: Simplify right side
    5,312.45x = 17,486,811.96
  5. Step 5: Solve for x
    x = 17,486,811.96/5,312.45
  6. Step 6: Final answer
    x = 3,291.66

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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.