Home / 4,445.20-6,133.04-3,120

Finding the Fourth Proportional to 4,445.20, 6,133.04 and 3,120

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Solution

The fourth proportional to 4,445.20, 6,133.04 and 3,120 is: 4,304.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.20 : 6,133.04 = 3,120 : x
  2. Step 2: Convert to fraction form
    4,445.20/6,133.04 = 3,120/x
  3. Step 3: Cross multiply
    4,445.20x = 6,133.04 × 3,120
  4. Step 4: Simplify right side
    4,445.20x = 19,135,084.80
  5. Step 5: Solve for x
    x = 19,135,084.80/4,445.20
  6. Step 6: Final answer
    x = 4,304.66

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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.