Home / 2,616.12-3,923.82-1,521

Finding the Fourth Proportional to 2,616.12, 3,923.82 and 1,521

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Solution

The fourth proportional to 2,616.12, 3,923.82 and 1,521 is: 2,281.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.12 : 3,923.82 = 1,521 : x
  2. Step 2: Convert to fraction form
    2,616.12/3,923.82 = 1,521/x
  3. Step 3: Cross multiply
    2,616.12x = 3,923.82 × 1,521
  4. Step 4: Simplify right side
    2,616.12x = 5,968,130.22
  5. Step 5: Solve for x
    x = 5,968,130.22/2,616.12
  6. Step 6: Final answer
    x = 2,281.29

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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.