Home / 5,115.16-7,056.54-3,225.88

Finding the Fourth Proportional to 5,115.16, 7,056.54 and 3,225.88

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Solution

The fourth proportional to 5,115.16, 7,056.54 and 3,225.88 is: 4,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.16 : 7,056.54 = 3,225.88 : x
  2. Step 2: Convert to fraction form
    5,115.16/7,056.54 = 3,225.88/x
  3. Step 3: Cross multiply
    5,115.16x = 7,056.54 × 3,225.88
  4. Step 4: Simplify right side
    5,115.16x = 22,763,551.26
  5. Step 5: Solve for x
    x = 22,763,551.26/5,115.16
  6. Step 6: Final answer
    x = 4,450.21

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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.