Home / 5,315.76-7,968.84-3,436.56

Finding the Fourth Proportional to 5,315.76, 7,968.84 and 3,436.56

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Solution

The fourth proportional to 5,315.76, 7,968.84 and 3,436.56 is: 5,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.76 : 7,968.84 = 3,436.56 : x
  2. Step 2: Convert to fraction form
    5,315.76/7,968.84 = 3,436.56/x
  3. Step 3: Cross multiply
    5,315.76x = 7,968.84 × 3,436.56
  4. Step 4: Simplify right side
    5,315.76x = 27,385,396.79
  5. Step 5: Solve for x
    x = 27,385,396.79/5,315.76
  6. Step 6: Final answer
    x = 5,151.74

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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.