Home / 3,148.80-4,723.20-3,039.45

Finding the Fourth Proportional to 3,148.80, 4,723.20 and 3,039.45

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Solution

The fourth proportional to 3,148.80, 4,723.20 and 3,039.45 is: 4,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.80 : 4,723.20 = 3,039.45 : x
  2. Step 2: Convert to fraction form
    3,148.80/4,723.20 = 3,039.45/x
  3. Step 3: Cross multiply
    3,148.80x = 4,723.20 × 3,039.45
  4. Step 4: Simplify right side
    3,148.80x = 14,355,930.24
  5. Step 5: Solve for x
    x = 14,355,930.24/3,148.80
  6. Step 6: Final answer
    x = 4,559.18

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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.