Home / 5,376.63-7,419.80-2,986.66

Finding the Fourth Proportional to 5,376.63, 7,419.80 and 2,986.66

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Solution

The fourth proportional to 5,376.63, 7,419.80 and 2,986.66 is: 4,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.63 : 7,419.80 = 2,986.66 : x
  2. Step 2: Convert to fraction form
    5,376.63/7,419.80 = 2,986.66/x
  3. Step 3: Cross multiply
    5,376.63x = 7,419.80 × 2,986.66
  4. Step 4: Simplify right side
    5,376.63x = 22,160,419.87
  5. Step 5: Solve for x
    x = 22,160,419.87/5,376.63
  6. Step 6: Final answer
    x = 4,121.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.