Home / 2,450.27-3,675.36-989.39

Finding the Fourth Proportional to 2,450.27, 3,675.36 and 989.39

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Solution

The fourth proportional to 2,450.27, 3,675.36 and 989.39 is: 1,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.27 : 3,675.36 = 989.39 : x
  2. Step 2: Convert to fraction form
    2,450.27/3,675.36 = 989.39/x
  3. Step 3: Cross multiply
    2,450.27x = 3,675.36 × 989.39
  4. Step 4: Simplify right side
    2,450.27x = 3,636,364.43
  5. Step 5: Solve for x
    x = 3,636,364.43/2,450.27
  6. Step 6: Final answer
    x = 1,484.07

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1.5x scale

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.