Home / 2,450.05-3,675.38-989.62

Finding the Fourth Proportional to 2,450.05, 3,675.38 and 989.62

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Solution

The fourth proportional to 2,450.05, 3,675.38 and 989.62 is: 1,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.05 : 3,675.38 = 989.62 : x
  2. Step 2: Convert to fraction form
    2,450.05/3,675.38 = 989.62/x
  3. Step 3: Cross multiply
    2,450.05x = 3,675.38 × 989.62
  4. Step 4: Simplify right side
    2,450.05x = 3,637,215.42
  5. Step 5: Solve for x
    x = 3,637,215.42/2,450.05
  6. Step 6: Final answer
    x = 1,484.55

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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.