Home / 1,521.06-2,281.85-481.32

Finding the Fourth Proportional to 1,521.06, 2,281.85 and 481.32

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Solution

The fourth proportional to 1,521.06, 2,281.85 and 481.32 is: 722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.06 : 2,281.85 = 481.32 : x
  2. Step 2: Convert to fraction form
    1,521.06/2,281.85 = 481.32/x
  3. Step 3: Cross multiply
    1,521.06x = 2,281.85 × 481.32
  4. Step 4: Simplify right side
    1,521.06x = 1,098,297.64
  5. Step 5: Solve for x
    x = 1,098,297.64/1,521.06
  6. Step 6: Final answer
    x = 722.06

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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.