Home / 2,021.67-3,031.65-926.73

Finding the Fourth Proportional to 2,021.67, 3,031.65 and 926.73

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Solution

The fourth proportional to 2,021.67, 3,031.65 and 926.73 is: 1,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.67 : 3,031.65 = 926.73 : x
  2. Step 2: Convert to fraction form
    2,021.67/3,031.65 = 926.73/x
  3. Step 3: Cross multiply
    2,021.67x = 3,031.65 × 926.73
  4. Step 4: Simplify right side
    2,021.67x = 2,809,521.00
  5. Step 5: Solve for x
    x = 2,809,521.00/2,021.67
  6. Step 6: Final answer
    x = 1,389.70

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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.