Home / 2,239.91-3,358.66-1,980.53

Finding the Fourth Proportional to 2,239.91, 3,358.66 and 1,980.53

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Solution

The fourth proportional to 2,239.91, 3,358.66 and 1,980.53 is: 2,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.91 : 3,358.66 = 1,980.53 : x
  2. Step 2: Convert to fraction form
    2,239.91/3,358.66 = 1,980.53/x
  3. Step 3: Cross multiply
    2,239.91x = 3,358.66 × 1,980.53
  4. Step 4: Simplify right side
    2,239.91x = 6,651,926.89
  5. Step 5: Solve for x
    x = 6,651,926.89/2,239.91
  6. Step 6: Final answer
    x = 2,969.73

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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.