Home / 3,152.24-4,729.20-1,072.40

Finding the Fourth Proportional to 3,152.24, 4,729.20 and 1,072.40

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Solution

The fourth proportional to 3,152.24, 4,729.20 and 1,072.40 is: 1,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.24 : 4,729.20 = 1,072.40 : x
  2. Step 2: Convert to fraction form
    3,152.24/4,729.20 = 1,072.40/x
  3. Step 3: Cross multiply
    3,152.24x = 4,729.20 × 1,072.40
  4. Step 4: Simplify right side
    3,152.24x = 5,071,594.08
  5. Step 5: Solve for x
    x = 5,071,594.08/3,152.24
  6. Step 6: Final answer
    x = 1,608.89

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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.