Home / 2,989.35-4,485.24-1,344.78

Finding the Fourth Proportional to 2,989.35, 4,485.24 and 1,344.78

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Solution

The fourth proportional to 2,989.35, 4,485.24 and 1,344.78 is: 2,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.35 : 4,485.24 = 1,344.78 : x
  2. Step 2: Convert to fraction form
    2,989.35/4,485.24 = 1,344.78/x
  3. Step 3: Cross multiply
    2,989.35x = 4,485.24 × 1,344.78
  4. Step 4: Simplify right side
    2,989.35x = 6,031,661.05
  5. Step 5: Solve for x
    x = 6,031,661.05/2,989.35
  6. Step 6: Final answer
    x = 2,017.72

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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.