Home / 1,282.01-1,921.21-1,020.85

Finding the Fourth Proportional to 1,282.01, 1,921.21 and 1,020.85

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Solution

The fourth proportional to 1,282.01, 1,921.21 and 1,020.85 is: 1,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.01 : 1,921.21 = 1,020.85 : x
  2. Step 2: Convert to fraction form
    1,282.01/1,921.21 = 1,020.85/x
  3. Step 3: Cross multiply
    1,282.01x = 1,921.21 × 1,020.85
  4. Step 4: Simplify right side
    1,282.01x = 1,961,267.23
  5. Step 5: Solve for x
    x = 1,961,267.23/1,282.01
  6. Step 6: Final answer
    x = 1,529.84

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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.