Home / 5,118.84-7,677.90-3,398.04

Finding the Fourth Proportional to 5,118.84, 7,677.90 and 3,398.04

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Solution

The fourth proportional to 5,118.84, 7,677.90 and 3,398.04 is: 5,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.84 : 7,677.90 = 3,398.04 : x
  2. Step 2: Convert to fraction form
    5,118.84/7,677.90 = 3,398.04/x
  3. Step 3: Cross multiply
    5,118.84x = 7,677.90 × 3,398.04
  4. Step 4: Simplify right side
    5,118.84x = 26,089,811.32
  5. Step 5: Solve for x
    x = 26,089,811.32/5,118.84
  6. Step 6: Final answer
    x = 5,096.82

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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.